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-rw-r--r--fs/aio.c7
-rw-r--r--fs/btrfs/backref.c3
-rw-r--r--fs/btrfs/check-integrity.c2
-rw-r--r--fs/btrfs/ctree.c4
-rw-r--r--fs/btrfs/ctree.h8
-rw-r--r--fs/btrfs/delayed-ref.h1
-rw-r--r--fs/btrfs/dev-replace.c5
-rw-r--r--fs/btrfs/disk-io.c52
-rw-r--r--fs/btrfs/extent-tree.c94
-rw-r--r--fs/btrfs/extent_io.c138
-rw-r--r--fs/btrfs/extent_io.h2
-rw-r--r--fs/btrfs/free-space-cache.c43
-rw-r--r--fs/btrfs/free-space-cache.h2
-rw-r--r--fs/btrfs/inode-map.c8
-rw-r--r--fs/btrfs/inode.c81
-rw-r--r--fs/btrfs/ioctl.c10
-rw-r--r--fs/btrfs/raid56.c2
-rw-r--r--fs/btrfs/relocation.c7
-rw-r--r--fs/btrfs/scrub.c10
-rw-r--r--fs/btrfs/super.c1
-rw-r--r--fs/btrfs/volumes.c54
-rw-r--r--fs/btrfs/volumes.h20
-rw-r--r--fs/cifs/inode.c3
-rw-r--r--fs/ext4/ext4.h8
-rw-r--r--fs/ext4/extents.c9
-rw-r--r--fs/ext4/extents_status.c17
-rw-r--r--fs/ext4/extents_status.h3
-rw-r--r--fs/ext4/file.c4
-rw-r--r--fs/ext4/inode.c85
-rw-r--r--fs/ext4/mballoc.c6
-rw-r--r--fs/ext4/page-io.c121
-rw-r--r--fs/fat/inode.c15
-rw-r--r--fs/gfs2/Kconfig2
-rw-r--r--fs/gfs2/lops.c2
-rw-r--r--fs/gfs2/quota.c4
-rw-r--r--fs/gfs2/rgrp.c9
-rw-r--r--fs/hfs/bnode.c6
-rw-r--r--fs/nfs/callback_proc.c2
-rw-r--r--fs/nfs/callback_xdr.c2
-rw-r--r--fs/nfs/nfs4client.c2
-rw-r--r--fs/nfs/nfs4proc.c2
-rw-r--r--fs/nfs/nfs4session.c4
-rw-r--r--fs/nfs/nfs4session.h13
-rw-r--r--fs/nfs/nfs4state.c15
-rw-r--r--fs/nilfs2/inode.c27
-rw-r--r--fs/ocfs2/extent_map.c2
-rw-r--r--fs/ocfs2/file.c2
-rw-r--r--fs/xfs/xfs_aops.c19
-rw-r--r--fs/xfs/xfs_attr_leaf.c27
-rw-r--r--fs/xfs/xfs_buf.c2
-rw-r--r--fs/xfs/xfs_da_btree.c7
-rw-r--r--fs/xfs/xfs_dir2_leaf.c2
-rw-r--r--fs/xfs/xfs_extfree_item.c5
-rw-r--r--fs/xfs/xfs_log_cil.c2
-rw-r--r--fs/xfs/xfs_vnodeops.c4
55 files changed, 541 insertions, 446 deletions
diff --git a/fs/aio.c b/fs/aio.c
index c5b1a8c..7fe5bde 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -307,7 +307,9 @@ static void free_ioctx(struct kioctx *ctx)
kunmap_atomic(ring);
while (atomic_read(&ctx->reqs_active) > 0) {
- wait_event(ctx->wait, head != ctx->tail);
+ wait_event(ctx->wait,
+ head != ctx->tail ||
+ atomic_read(&ctx->reqs_active) <= 0);
avail = (head <= ctx->tail ? ctx->tail : ctx->nr_events) - head;
@@ -1299,8 +1301,7 @@ SYSCALL_DEFINE3(io_cancel, aio_context_t, ctx_id, struct iocb __user *, iocb,
* < min_nr if the timeout specified by timeout has elapsed
* before sufficient events are available, where timeout == NULL
* specifies an infinite timeout. Note that the timeout pointed to by
- * timeout is relative and will be updated if not NULL and the
- * operation blocks. Will fail with -ENOSYS if not implemented.
+ * timeout is relative. Will fail with -ENOSYS if not implemented.
*/
SYSCALL_DEFINE5(io_getevents, aio_context_t, ctx_id,
long, min_nr,
diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c
index b4fb415..290e347 100644
--- a/fs/btrfs/backref.c
+++ b/fs/btrfs/backref.c
@@ -918,7 +918,8 @@ again:
ref->parent, bsz, 0);
if (!eb || !extent_buffer_uptodate(eb)) {
free_extent_buffer(eb);
- return -EIO;
+ ret = -EIO;
+ goto out;
}
ret = find_extent_in_eb(eb, bytenr,
*extent_item_pos, &eie);
diff --git a/fs/btrfs/check-integrity.c b/fs/btrfs/check-integrity.c
index 18af6f4..1431a69 100644
--- a/fs/btrfs/check-integrity.c
+++ b/fs/btrfs/check-integrity.c
@@ -1700,7 +1700,7 @@ static int btrfsic_read_block(struct btrfsic_state *state,
unsigned int j;
DECLARE_COMPLETION_ONSTACK(complete);
- bio = bio_alloc(GFP_NOFS, num_pages - i);
+ bio = btrfs_io_bio_alloc(GFP_NOFS, num_pages - i);
if (!bio) {
printk(KERN_INFO
"btrfsic: bio_alloc() for %u pages failed!\n",
diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
index de6de8e..02fae7f 100644
--- a/fs/btrfs/ctree.c
+++ b/fs/btrfs/ctree.c
@@ -951,10 +951,12 @@ static noinline int update_ref_for_cow(struct btrfs_trans_handle *trans,
BUG_ON(ret); /* -ENOMEM */
}
if (new_flags != 0) {
+ int level = btrfs_header_level(buf);
+
ret = btrfs_set_disk_extent_flags(trans, root,
buf->start,
buf->len,
- new_flags, 0);
+ new_flags, level, 0);
if (ret)
return ret;
}
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 63c328a..d6dd49b 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -88,12 +88,12 @@ struct btrfs_ordered_sum;
/* holds checksums of all the data extents */
#define BTRFS_CSUM_TREE_OBJECTID 7ULL
-/* for storing balance parameters in the root tree */
-#define BTRFS_BALANCE_OBJECTID -4ULL
-
/* holds quota configuration and tracking */
#define BTRFS_QUOTA_TREE_OBJECTID 8ULL
+/* for storing balance parameters in the root tree */
+#define BTRFS_BALANCE_OBJECTID -4ULL
+
/* orhpan objectid for tracking unlinked/truncated files */
#define BTRFS_ORPHAN_OBJECTID -5ULL
@@ -3075,7 +3075,7 @@ int btrfs_dec_ref(struct btrfs_trans_handle *trans, struct btrfs_root *root,
int btrfs_set_disk_extent_flags(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
u64 bytenr, u64 num_bytes, u64 flags,
- int is_data);
+ int level, int is_data);
int btrfs_free_extent(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
u64 bytenr, u64 num_bytes, u64 parent, u64 root_objectid,
diff --git a/fs/btrfs/delayed-ref.h b/fs/btrfs/delayed-ref.h
index f75fcaf..70b962c 100644
--- a/fs/btrfs/delayed-ref.h
+++ b/fs/btrfs/delayed-ref.h
@@ -60,6 +60,7 @@ struct btrfs_delayed_ref_node {
struct btrfs_delayed_extent_op {
struct btrfs_disk_key key;
u64 flags_to_set;
+ int level;
unsigned int update_key:1;
unsigned int update_flags:1;
unsigned int is_data:1;
diff --git a/fs/btrfs/dev-replace.c b/fs/btrfs/dev-replace.c
index 7ba7b39..65241f3 100644
--- a/fs/btrfs/dev-replace.c
+++ b/fs/btrfs/dev-replace.c
@@ -313,6 +313,11 @@ int btrfs_dev_replace_start(struct btrfs_root *root,
struct btrfs_device *tgt_device = NULL;
struct btrfs_device *src_device = NULL;
+ if (btrfs_fs_incompat(fs_info, RAID56)) {
+ pr_warn("btrfs: dev_replace cannot yet handle RAID5/RAID6\n");
+ return -EINVAL;
+ }
+
switch (args->start.cont_reading_from_srcdev_mode) {
case BTRFS_IOCTL_DEV_REPLACE_CONT_READING_FROM_SRCDEV_MODE_ALWAYS:
case BTRFS_IOCTL_DEV_REPLACE_CONT_READING_FROM_SRCDEV_MODE_AVOID:
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 4e9ebe1..e7b3cb5 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -152,7 +152,7 @@ static struct btrfs_lockdep_keyset {
{ .id = BTRFS_DEV_TREE_OBJECTID, .name_stem = "dev" },
{ .id = BTRFS_FS_TREE_OBJECTID, .name_stem = "fs" },
{ .id = BTRFS_CSUM_TREE_OBJECTID, .name_stem = "csum" },
- { .id = BTRFS_ORPHAN_OBJECTID, .name_stem = "orphan" },
+ { .id = BTRFS_QUOTA_TREE_OBJECTID, .name_stem = "quota" },
{ .id = BTRFS_TREE_LOG_OBJECTID, .name_stem = "log" },
{ .id = BTRFS_TREE_RELOC_OBJECTID, .name_stem = "treloc" },
{ .id = BTRFS_DATA_RELOC_TREE_OBJECTID, .name_stem = "dreloc" },
@@ -1513,7 +1513,6 @@ struct btrfs_root *btrfs_read_fs_root_no_radix(struct btrfs_root *tree_root,
}
root->commit_root = btrfs_root_node(root);
- BUG_ON(!root->node); /* -ENOMEM */
out:
if (location->objectid != BTRFS_TREE_LOG_OBJECTID) {
root->ref_cows = 1;
@@ -1988,30 +1987,33 @@ static void free_root_pointers(struct btrfs_fs_info *info, int chunk_root)
{
free_extent_buffer(info->tree_root->node);
free_extent_buffer(info->tree_root->commit_root);
- free_extent_buffer(info->dev_root->node);
- free_extent_buffer(info->dev_root->commit_root);
- free_extent_buffer(info->extent_root->node);
- free_extent_buffer(info->extent_root->commit_root);
- free_extent_buffer(info->csum_root->node);
- free_extent_buffer(info->csum_root->commit_root);
- if (info->quota_root) {
- free_extent_buffer(info->quota_root->node);
- free_extent_buffer(info->quota_root->commit_root);
- }
-
info->tree_root->node = NULL;
info->tree_root->commit_root = NULL;
- info->dev_root->node = NULL;
- info->dev_root->commit_root = NULL;
- info->extent_root->node = NULL;
- info->extent_root->commit_root = NULL;
- info->csum_root->node = NULL;
- info->csum_root->commit_root = NULL;
+
+ if (info->dev_root) {
+ free_extent_buffer(info->dev_root->node);
+ free_extent_buffer(info->dev_root->commit_root);
+ info->dev_root->node = NULL;
+ info->dev_root->commit_root = NULL;
+ }
+ if (info->extent_root) {
+ free_extent_buffer(info->extent_root->node);
+ free_extent_buffer(info->extent_root->commit_root);
+ info->extent_root->node = NULL;
+ info->extent_root->commit_root = NULL;
+ }
+ if (info->csum_root) {
+ free_extent_buffer(info->csum_root->node);
+ free_extent_buffer(info->csum_root->commit_root);
+ info->csum_root->node = NULL;
+ info->csum_root->commit_root = NULL;
+ }
if (info->quota_root) {
+ free_extent_buffer(info->quota_root->node);
+ free_extent_buffer(info->quota_root->commit_root);
info->quota_root->node = NULL;
info->quota_root->commit_root = NULL;
}
-
if (chunk_root) {
free_extent_buffer(info->chunk_root->node);
free_extent_buffer(info->chunk_root->commit_root);
@@ -3128,7 +3130,7 @@ static int write_dev_flush(struct btrfs_device *device, int wait)
* caller
*/
device->flush_bio = NULL;
- bio = bio_alloc(GFP_NOFS, 0);
+ bio = btrfs_io_bio_alloc(GFP_NOFS, 0);
if (!bio)
return -ENOMEM;
@@ -3659,8 +3661,11 @@ static void btrfs_destroy_ordered_operations(struct btrfs_transaction *t,
ordered_operations);
list_del_init(&btrfs_inode->ordered_operations);
+ spin_unlock(&root->fs_info->ordered_extent_lock);
btrfs_invalidate_inodes(btrfs_inode->root);
+
+ spin_lock(&root->fs_info->ordered_extent_lock);
}
spin_unlock(&root->fs_info->ordered_extent_lock);
@@ -3782,8 +3787,11 @@ static void btrfs_destroy_delalloc_inodes(struct btrfs_root *root)
list_del_init(&btrfs_inode->delalloc_inodes);
clear_bit(BTRFS_INODE_IN_DELALLOC_LIST,
&btrfs_inode->runtime_flags);
+ spin_unlock(&root->fs_info->delalloc_lock);
btrfs_invalidate_inodes(btrfs_inode->root);
+
+ spin_lock(&root->fs_info->delalloc_lock);
}
spin_unlock(&root->fs_info->delalloc_lock);
@@ -3808,7 +3816,7 @@ static int btrfs_destroy_marked_extents(struct btrfs_root *root,
while (start <= end) {
eb = btrfs_find_tree_block(root, start,
root->leafsize);
- start += eb->len;
+ start += root->leafsize;
if (!eb)
continue;
wait_on_extent_buffer_writeback(eb);
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 2305b5c..df472ab 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -2070,8 +2070,7 @@ static int run_delayed_extent_op(struct btrfs_trans_handle *trans,
u32 item_size;
int ret;
int err = 0;
- int metadata = (node->type == BTRFS_TREE_BLOCK_REF_KEY ||
- node->type == BTRFS_SHARED_BLOCK_REF_KEY);
+ int metadata = !extent_op->is_data;
if (trans->aborted)
return 0;
@@ -2086,11 +2085,8 @@ static int run_delayed_extent_op(struct btrfs_trans_handle *trans,
key.objectid = node->bytenr;
if (metadata) {
- struct btrfs_delayed_tree_ref *tree_ref;
-
- tree_ref = btrfs_delayed_node_to_tree_ref(node);
key.type = BTRFS_METADATA_ITEM_KEY;
- key.offset = tree_ref->level;
+ key.offset = extent_op->level;
} else {
key.type = BTRFS_EXTENT_ITEM_KEY;
key.offset = node->num_bytes;
@@ -2719,7 +2715,7 @@ out:
int btrfs_set_disk_extent_flags(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
u64 bytenr, u64 num_bytes, u64 flags,
- int is_data)
+ int level, int is_data)
{
struct btrfs_delayed_extent_op *extent_op;
int ret;
@@ -2732,6 +2728,7 @@ int btrfs_set_disk_extent_flags(struct btrfs_trans_handle *trans,
extent_op->update_flags = 1;
extent_op->update_key = 0;
extent_op->is_data = is_data ? 1 : 0;
+ extent_op->level = level;
ret = btrfs_add_delayed_extent_op(root->fs_info, trans, bytenr,
num_bytes, extent_op);
@@ -3109,6 +3106,11 @@ again:
WARN_ON(ret);
if (i_size_read(inode) > 0) {
+ ret = btrfs_check_trunc_cache_free_space(root,
+ &root->fs_info->global_block_rsv);
+ if (ret)
+ goto out_put;
+
ret = btrfs_truncate_free_space_cache(root, trans, path,
inode);
if (ret)
@@ -4562,6 +4564,8 @@ static void init_global_block_rsv(struct btrfs_fs_info *fs_info)
fs_info->csum_root->block_rsv = &fs_info->global_block_rsv;
fs_info->dev_root->block_rsv = &fs_info->global_block_rsv;
fs_info->tree_root->block_rsv = &fs_info->global_block_rsv;
+ if (fs_info->quota_root)
+ fs_info->quota_root->block_rsv = &fs_info->global_block_rsv;
fs_info->chunk_root->block_rsv = &fs_info->chunk_block_rsv;
update_global_block_rsv(fs_info);
@@ -6651,51 +6655,51 @@ use_block_rsv(struct btrfs_trans_handle *trans,
struct btrfs_block_rsv *block_rsv;
struct btrfs_block_rsv *global_rsv = &root->fs_info->global_block_rsv;
int ret;
+ bool global_updated = false;
block_rsv = get_block_rsv(trans, root);
- if (block_rsv->size == 0) {
- ret = reserve_metadata_bytes(root, block_rsv, blocksize,
- BTRFS_RESERVE_NO_FLUSH);
- /*
- * If we couldn't reserve metadata bytes try and use some from
- * the global reserve.
- */
- if (ret && block_rsv != global_rsv) {
- ret = block_rsv_use_bytes(global_rsv, blocksize);
- if (!ret)
- return global_rsv;
- return ERR_PTR(ret);
- } else if (ret) {
- return ERR_PTR(ret);
- }
+ if (unlikely(block_rsv->size == 0))
+ goto try_reserve;
+again:
+ ret = block_rsv_use_bytes(block_rsv, blocksize);
+ if (!ret)
return block_rsv;
+
+ if (block_rsv->failfast)
+ return ERR_PTR(ret);
+
+ if (block_rsv->type == BTRFS_BLOCK_RSV_GLOBAL && !global_updated) {
+ global_updated = true;
+ update_global_block_rsv(root->fs_info);
+ goto again;
}
- ret = block_rsv_use_bytes(block_rsv, blocksize);
+ if (btrfs_test_opt(root, ENOSPC_DEBUG)) {
+ static DEFINE_RATELIMIT_STATE(_rs,
+ DEFAULT_RATELIMIT_INTERVAL * 10,
+ /*DEFAULT_RATELIMIT_BURST*/ 1);
+ if (__ratelimit(&_rs))
+ WARN(1, KERN_DEBUG
+ "btrfs: block rsv returned %d\n", ret);
+ }
+try_reserve:
+ ret = reserve_metadata_bytes(root, block_rsv, blocksize,
+ BTRFS_RESERVE_NO_FLUSH);
if (!ret)
return block_rsv;
- if (ret && !block_rsv->failfast) {
- if (btrfs_test_opt(root, ENOSPC_DEBUG)) {
- static DEFINE_RATELIMIT_STATE(_rs,
- DEFAULT_RATELIMIT_INTERVAL * 10,
- /*DEFAULT_RATELIMIT_BURST*/ 1);
- if (__ratelimit(&_rs))
- WARN(1, KERN_DEBUG
- "btrfs: block rsv returned %d\n", ret);
- }
- ret = reserve_metadata_bytes(root, block_rsv, blocksize,
- BTRFS_RESERVE_NO_FLUSH);
- if (!ret) {
- return block_rsv;
- } else if (ret && block_rsv != global_rsv) {
- ret = block_rsv_use_bytes(global_rsv, blocksize);
- if (!ret)
- return global_rsv;
- }
+ /*
+ * If we couldn't reserve metadata bytes try and use some from
+ * the global reserve if its space type is the same as the global
+ * reservation.
+ */
+ if (block_rsv->type != BTRFS_BLOCK_RSV_GLOBAL &&
+ block_rsv->space_info == global_rsv->space_info) {
+ ret = block_rsv_use_bytes(global_rsv, blocksize);
+ if (!ret)
+ return global_rsv;
}
-
- return ERR_PTR(-ENOSPC);
+ return ERR_PTR(ret);
}
static void unuse_block_rsv(struct btrfs_fs_info *fs_info,
@@ -6763,6 +6767,7 @@ struct extent_buffer *btrfs_alloc_free_block(struct btrfs_trans_handle *trans,
extent_op->update_key = 1;
extent_op->update_flags = 1;
extent_op->is_data = 0;
+ extent_op->level = level;
ret = btrfs_add_delayed_tree_ref(root->fs_info, trans,
ins.objectid,
@@ -6934,7 +6939,8 @@ static noinline int walk_down_proc(struct btrfs_trans_handle *trans,
ret = btrfs_dec_ref(trans, root, eb, 0, wc->for_reloc);
BUG_ON(ret); /* -ENOMEM */
ret = btrfs_set_disk_extent_flags(trans, root, eb->start,
- eb->len, flag, 0);
+ eb->len, flag,
+ btrfs_header_level(eb), 0);
BUG_ON(ret); /* -ENOMEM */
wc->flags[level] |= flag;
}
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 32d67a8..e7e7afb 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -23,6 +23,7 @@
static struct kmem_cache *extent_state_cache;
static struct kmem_cache *extent_buffer_cache;
+static struct bio_set *btrfs_bioset;
#ifdef CONFIG_BTRFS_DEBUG
static LIST_HEAD(buffers);
@@ -125,10 +126,20 @@ int __init extent_io_init(void)
SLAB_RECLAIM_ACCOUNT | SLAB_MEM_SPREAD, NULL);
if (!extent_buffer_cache)
goto free_state_cache;
+
+ btrfs_bioset = bioset_create(BIO_POOL_SIZE,
+ offsetof(struct btrfs_io_bio, bio));
+ if (!btrfs_bioset)
+ goto free_buffer_cache;
return 0;
+free_buffer_cache:
+ kmem_cache_destroy(extent_buffer_cache);
+ extent_buffer_cache = NULL;
+
free_state_cache:
kmem_cache_destroy(extent_state_cache);
+ extent_state_cache = NULL;
return -ENOMEM;
}
@@ -145,6 +156,8 @@ void extent_io_exit(void)
kmem_cache_destroy(extent_state_cache);
if (extent_buffer_cache)
kmem_cache_destroy(extent_buffer_cache);
+ if (btrfs_bioset)
+ bioset_free(btrfs_bioset);
}
void extent_io_tree_init(struct extent_io_tree *tree,
@@ -1948,28 +1961,6 @@ static void check_page_uptodate(struct extent_io_tree *tree, struct page *page)
}
/*
- * helper function to unlock a page if all the extents in the tree
- * for that page are unlocked
- */
-static void check_page_locked(struct extent_io_tree *tree, struct page *page)
-{
- u64 start = page_offset(page);
- u64 end = start + PAGE_CACHE_SIZE - 1;
- if (!test_range_bit(tree, start, end, EXTENT_LOCKED, 0, NULL))
- unlock_page(page);
-}
-
-/*
- * helper function to end page writeback if all the extents
- * in the tree for that page are done with writeback
- */
-static void check_page_writeback(struct extent_io_tree *tree,
- struct page *page)
-{
- end_page_writeback(page);
-}
-
-/*
* When IO fails, either with EIO or csum verification fails, we
* try other mirrors that might have a good copy of the data. This
* io_failure_record is used to record state as we go through all the
@@ -2046,7 +2037,7 @@ int repair_io_failure(struct btrfs_fs_info *fs_info, u64 start,
if (btrfs_is_parity_mirror(map_tree, logical, length, mirror_num))
return 0;
- bio = bio_alloc(GFP_NOFS, 1);
+ bio = btrfs_io_bio_alloc(GFP_NOFS, 1);
if (!bio)
return -EIO;
bio->bi_private = &compl;
@@ -2336,7 +2327,7 @@ static int bio_readpage_error(struct bio *failed_bio, struct page *page,
return -EIO;
}
- bio = bio_alloc(GFP_NOFS, 1);
+ bio = btrfs_io_bio_alloc(GFP_NOFS, 1);
if (!bio) {
free_io_failure(inode, failrec, 0);
return -EIO;
@@ -2398,19 +2389,24 @@ static void end_bio_extent_writepage(struct bio *bio, int err)
struct extent_io_tree *tree;
u64 start;
u64 end;
- int whole_page;
do {
struct page *page = bvec->bv_page;
tree = &BTRFS_I(page->mapping->host)->io_tree;
- start = page_offset(page) + bvec->bv_offset;
- end = start + bvec->bv_len - 1;
+ /* We always issue full-page reads, but if some block
+ * in a page fails to read, blk_update_request() will
+ * advance bv_offset and adjust bv_len to compensate.
+ * Print a warning for nonzero offsets, and an error
+ * if they don't add up to a full page. */
+ if (bvec->bv_offset || bvec->bv_len != PAGE_CACHE_SIZE)
+ printk("%s page write in btrfs with offset %u and length %u\n",
+ bvec->bv_offset + bvec->bv_len != PAGE_CACHE_SIZE
+ ? KERN_ERR "partial" : KERN_INFO "incomplete",
+ bvec->bv_offset, bvec->bv_len);
- if (bvec->bv_offset == 0 && bvec->bv_len == PAGE_CACHE_SIZE)
- whole_page = 1;
- else
- whole_page = 0;
+ start = page_offset(page);
+ end = start + bvec->bv_offset + bvec->bv_len - 1;
if (--bvec >= bio->bi_io_vec)
prefetchw(&bvec->bv_page->flags);
@@ -2418,10 +2414,7 @@ static void end_bio_extent_writepage(struct bio *bio, int err)
if (end_extent_writepage(page, err, start, end))
continue;
- if (whole_page)
- end_page_writeback(page);
- else
- check_page_writeback(tree, page);
+ end_page_writeback(page);
} while (bvec >= bio->bi_io_vec);
bio_put(bio);
@@ -2446,7 +2439,6 @@ static void end_bio_extent_readpage(struct bio *bio, int err)
struct extent_io_tree *tree;
u64 start;
u64 end;
- int whole_page;
int mirror;
int ret;
@@ -2457,19 +2449,26 @@ static void end_bio_extent_readpage(struct bio *bio, int err)
struct page *page = bvec->bv_page;
struct extent_state *cached = NULL;
struct extent_state *state;
+ struct btrfs_io_bio *io_bio = btrfs_io_bio(bio);
pr_debug("end_bio_extent_readpage: bi_sector=%llu, err=%d, "
- "mirror=%ld\n", (u64)bio->bi_sector, err,
- (long int)bio->bi_bdev);
+ "mirror=%lu\n", (u64)bio->bi_sector, err,
+ io_bio->mirror_num);
tree = &BTRFS_I(page->mapping->host)->io_tree;
- start = page_offset(page) + bvec->bv_offset;
- end = start + bvec->bv_len - 1;
+ /* We always issue full-page reads, but if some block
+ * in a page fails to read, blk_update_request() will
+ * advance bv_offset and adjust bv_len to compensate.
+ * Print a warning for nonzero offsets, and an error
+ * if they don't add up to a full page. */
+ if (bvec->bv_offset || bvec->bv_len != PAGE_CACHE_SIZE)
+ printk("%s page read in btrfs with offset %u and length %u\n",
+ bvec->bv_offset + bvec->bv_len != PAGE_CACHE_SIZE
+ ? KERN_ERR "partial" : KERN_INFO "incomplete",
+ bvec->bv_offset, bvec->bv_len);
- if (bvec->bv_offset == 0 && bvec->bv_len == PAGE_CACHE_SIZE)
- whole_page = 1;
- else
- whole_page = 0;
+ start = page_offset(page);
+ end = start + bvec->bv_offset + bvec->bv_len - 1;
if (++bvec <= bvec_end)
prefetchw(&bvec->bv_page->flags);
@@ -2485,7 +2484,7 @@ static void end_bio_extent_readpage(struct bio *bio, int err)
}
spin_unlock(&tree->lock);
- mirror = (int)(unsigned long)bio->bi_bdev;
+ mirror = io_bio->mirror_num;
if (uptodate && tree->ops && tree->ops->readpage_end_io_hook) {
ret = tree->ops->readpage_end_io_hook(page, start, end,
state, mirror);
@@ -2528,39 +2527,35 @@ static void end_bio_extent_readpage(struct bio *bio, int err)
}
unlock_extent_cached(tree, start, end, &cached, GFP_ATOMIC);
- if (whole_page) {
- if (uptodate) {
- SetPageUptodate(page);
- } else {
- ClearPageUptodate(page);
- SetPageError(page);
- }
- unlock_page(page);
+ if (uptodate) {
+ SetPageUptodate(page);
} else {
- if (uptodate) {
- check_page_uptodate(tree, page);
- } else {
- ClearPageUptodate(page);
- SetPageError(page);
- }
- check_page_locked(tree, page);
+ ClearPageUptodate(page);
+ SetPageError(page);
}
+ unlock_page(page);
} while (bvec <= bvec_end);
bio_put(bio);
}
+/*
+ * this allocates from the btrfs_bioset. We're returning a bio right now
+ * but you can call btrfs_io_bio for the appropriate container_of magic
+ */
struct bio *
btrfs_bio_alloc(struct block_device *bdev, u64 first_sector, int nr_vecs,
gfp_t gfp_flags)
{
struct bio *bio;
- bio = bio_alloc(gfp_flags, nr_vecs);
+ bio = bio_alloc_bioset(gfp_flags, nr_vecs, btrfs_bioset);
if (bio == NULL && (current->flags & PF_MEMALLOC)) {
- while (!bio && (nr_vecs /= 2))
- bio = bio_alloc(gfp_flags, nr_vecs);
+ while (!bio && (nr_vecs /= 2)) {
+ bio = bio_alloc_bioset(gfp_flags,
+ nr_vecs, btrfs_bioset);
+ }
}
if (bio) {
@@ -2571,6 +2566,19 @@ btrfs_bio_alloc(struct block_device *bdev, u64 first_sector, int nr_vecs,
return bio;
}
+struct bio *btrfs_bio_clone(struct bio *bio, gfp_t gfp_mask)
+{
+ return bio_clone_bioset(bio, gfp_mask, btrfs_bioset);
+}
+
+
+/* this also allocates from the btrfs_bioset */
+struct bio *btrfs_io_bio_alloc(gfp_t gfp_mask, unsigned int nr_iovecs)
+{
+ return bio_alloc_bioset(gfp_mask, nr_iovecs, btrfs_bioset);
+}
+
+
static int __must_check submit_one_bio(int rw, struct bio *bio,
int mirror_num, unsigned long bio_flags)
{
@@ -3988,7 +3996,7 @@ int extent_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
last_for_get_extent = isize;
}
- lock_extent_bits(&BTRFS_I(inode)->io_tree, start, start + len, 0,
+ lock_extent_bits(&BTRFS_I(inode)->io_tree, start, start + len - 1, 0,
&cached_state);
em = get_extent_skip_holes(inode, start, last_for_get_extent,
@@ -4075,7 +4083,7 @@ int extent_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
out_free:
free_extent_map(em);
out:
- unlock_extent_cached(&BTRFS_I(inode)->io_tree, start, start + len,
+ unlock_extent_cached(&BTRFS_I(inode)->io_tree, start, start + len - 1,
&cached_state, GFP_NOFS);
return ret;
}
diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h
index a2c03a1..41fb81e 100644
--- a/fs/btrfs/extent_io.h
+++ b/fs/btrfs/extent_io.h
@@ -336,6 +336,8 @@ int extent_clear_unlock_delalloc(struct inode *inode,
struct bio *
btrfs_bio_alloc(struct block_device *bdev, u64 first_sector, int nr_vecs,
gfp_t gfp_flags);
+struct bio *btrfs_io_bio_alloc(gfp_t gfp_mask, unsigned int nr_iovecs);
+struct bio *btrfs_bio_clone(struct bio *bio, gfp_t gfp_mask);
struct btrfs_fs_info;
diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c
index ecca6c7..e530096 100644
--- a/fs/btrfs/free-space-cache.c
+++ b/fs/btrfs/free-space-cache.c
@@ -197,30 +197,32 @@ int create_free_space_inode(struct btrfs_root *root,
block_group->key.objectid);
}
-int btrfs_truncate_free_space_cache(struct btrfs_root *root,
- struct btrfs_trans_handle *trans,
- struct btrfs_path *path,
- struct inode *inode)
+int btrfs_check_trunc_cache_free_space(struct btrfs_root *root,
+ struct btrfs_block_rsv *rsv)
{
- struct btrfs_block_rsv *rsv;
u64 needed_bytes;
- loff_t oldsize;
- int ret = 0;
-
- rsv = trans->block_rsv;
- trans->block_rsv = &root->fs_info->global_block_rsv;
+ int ret;
/* 1 for slack space, 1 for updating the inode */
needed_bytes = btrfs_calc_trunc_metadata_size(root, 1) +
btrfs_calc_trans_metadata_size(root, 1);
- spin_lock(&trans->block_rsv->lock);
- if (trans->block_rsv->reserved < needed_bytes) {
- spin_unlock(&trans->block_rsv->lock);
- trans->block_rsv = rsv;
- return -ENOSPC;
- }
- spin_unlock(&trans->block_rsv->lock);
+ spin_lock(&rsv->lock);
+ if (rsv->reserved < needed_bytes)
+ ret = -ENOSPC;
+ else
+ ret = 0;
+ spin_unlock(&rsv->lock);
+ return 0;
+}
+
+int btrfs_truncate_free_space_cache(struct btrfs_root *root,
+ struct btrfs_trans_handle *trans,
+ struct btrfs_path *path,
+ struct inode *inode)
+{
+ loff_t oldsize;
+ int ret = 0;
oldsize = i_size_read(inode);
btrfs_i_size_write(inode, 0);
@@ -232,9 +234,7 @@ int btrfs_truncate_free_space_cache(struct btrfs_root *root,
*/
ret = btrfs_truncate_inode_items(trans, root, inode,
0, BTRFS_EXTENT_DATA_KEY);
-
if (ret) {
- trans->block_rsv = rsv;
btrfs_abort_transaction(trans, root, ret);
return ret;
}
@@ -242,7 +242,6 @@ int btrfs_truncate_free_space_cache(struct btrfs_root *root,
ret = btrfs_update_inode(trans, root, inode);
if (ret)
btrfs_abort_transaction(trans, root, ret);
- trans->block_rsv = rsv;
return ret;
}
@@ -920,10 +919,8 @@ static int __btrfs_write_out_cache(struct btrfs_root *root, struct inode *inode,
/* Make sure we can fit our crcs into the first page */
if (io_ctl.check_crcs &&
- (io_ctl.num_pages * sizeof(u32)) >= PAGE_CACHE_SIZE) {
- WARN_ON(1);
+ (io_ctl.num_pages * sizeof(u32)) >= PAGE_CACHE_SIZE)
goto out_nospc;
- }
io_ctl_set_generation(&io_ctl, trans->transid);
diff --git a/fs/btrfs/free-space-cache.h b/fs/btrfs/free-space-cache.h
index 4dc17d8..8b7f19f 100644
--- a/fs/btrfs/free-space-cache.h
+++ b/fs/btrfs/free-space-cache.h
@@ -54,6 +54,8 @@ int create_free_space_inode(struct btrfs_root *root,
struct btrfs_block_group_cache *block_group,
struct btrfs_path *path);
+int btrfs_check_trunc_cache_free_space(struct btrfs_root *root,
+ struct btrfs_block_rsv *rsv);
int btrfs_truncate_free_space_cache(struct btrfs_root *root,
struct btrfs_trans_handle *trans,
struct btrfs_path *path,
diff --git a/fs/btrfs/inode-map.c b/fs/btrfs/inode-map.c
index d26f67a..2c66ddb 100644
--- a/fs/btrfs/inode-map.c
+++ b/fs/btrfs/inode-map.c
@@ -429,11 +429,12 @@ int btrfs_save_ino_cache(struct btrfs_root *root,
num_bytes = trans->bytes_reserved;
/*
* 1 item for inode item insertion if need
- * 3 items for inode item update (in the worst case)
+ * 4 items for inode item update (in the worst case)
+ * 1 items for slack space if we need do truncation
* 1 item for free space object
* 3 items for pre-allocation
*/
- trans->bytes_reserved = btrfs_calc_trans_metadata_size(root, 8);
+ trans->bytes_reserved = btrfs_calc_trans_metadata_size(root, 10);
ret = btrfs_block_rsv_add(root, trans->block_rsv,
trans->bytes_reserved,
BTRFS_RESERVE_NO_FLUSH);
@@ -468,7 +469,8 @@ again:
if (i_size_read(inode) > 0) {
ret = btrfs_truncate_free_space_cache(root, trans, path, inode);
if (ret) {
- btrfs_abort_transaction(trans, root, ret);
+ if (ret != -ENOSPC)
+ btrfs_abort_transaction(trans, root, ret);
goto out_put;
}
}
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 9b31b3b..af978f7 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -715,8 +715,10 @@ retry:
async_extent->ram_size - 1, 0);
em = alloc_extent_map();
- if (!em)
+ if (!em) {
+ ret = -ENOMEM;
goto out_free_reserve;
+ }
em->start = async_extent->start;
em->len = async_extent->ram_size;
em->orig_start = em->start;
@@ -923,8 +925,10 @@ static noinline int __cow_file_range(struct btrfs_trans_handle *trans,
}
em = alloc_extent_map();
- if (!em)
+ if (!em) {
+ ret = -ENOMEM;
goto out_reserve;
+ }
em->start = start;
em->orig_start = em->start;
ram_size = ins.offset;
@@ -4724,6 +4728,7 @@ void btrfs_evict_inode(struct inode *inode)
btrfs_end_transaction(trans, root);
btrfs_btree_balance_dirty(root);
no_delete:
+ btrfs_remove_delayed_node(inode);
clear_inode(inode);
return;
}
@@ -4839,14 +4844,13 @@ static void inode_tree_add(struct inode *inode)
struct rb_node **p;
struct rb_node *parent;
u64 ino = btrfs_ino(inode);
-again:
- p = &root->inode_tree.rb_node;
- parent = NULL;
if (inode_unhashed(inode))
return;
-
+again:
+ parent = NULL;
spin_lock(&root->inode_lock);
+ p = &root->inode_tree.rb_node;
while (*p) {
parent = *p;
entry = rb_entry(parent, struct btrfs_inode, rb_node);
@@ -6928,7 +6932,11 @@ struct btrfs_dio_private {
/* IO errors */
int errors;
+ /* orig_bio is our btrfs_io_bio */
struct bio *orig_bio;
+
+ /* dio_bio came from fs/direct-io.c */
+ struct bio *dio_bio;
};
static void btrfs_endio_direct_read(struct bio *bio, int err)
@@ -6938,6 +6946,7 @@ static void btrfs_endio_direct_read(struct bio *bio, int err)
struct bio_vec *bvec = bio->bi_io_vec;
struct inode *inode = dip->inode;
struct btrfs_root *root = BTRFS_I(inode)->root;
+ struct bio *dio_bio;
u64 start;
start = dip->logical_offset;
@@ -6977,14 +6986,15 @@ failed:
unlock_extent(&BTRFS_I(inode)->io_tree, dip->logical_offset,
dip->logical_offset + dip->bytes - 1);
- bio->bi_private = dip->private;
+ dio_bio = dip->dio_bio;
kfree(dip);
/* If we had a csum failure make sure to clear the uptodate flag */
if (err)
- clear_bit(BIO_UPTODATE, &bio->bi_flags);
- dio_end_io(bio, err);
+ clear_bit(BIO_UPTODATE, &dio_bio->bi_flags);
+ dio_end_io(dio_bio, err);
+ bio_put(bio);
}
static void btrfs_endio_direct_write(struct bio *bio, int err)
@@ -6995,6 +7005,7 @@ static void btrfs_endio_direct_write(struct bio *bio, int err)
struct btrfs_ordered_extent *ordered = NULL;
u64 ordered_offset = dip->logical_offset;
u64 ordered_bytes = dip->bytes;
+ struct bio *dio_bio;
int ret;
if (err)
@@ -7022,14 +7033,15 @@ out_test:
goto again;
}
out_done:
- bio->bi_private = dip->private;
+ dio_bio = dip->dio_bio;
kfree(dip);
/* If we had an error make sure to clear the uptodate flag */
if (err)
- clear_bit(BIO_UPTODATE, &bio->bi_flags);
- dio_end_io(bio, err);
+ clear_bit(BIO_UPTODATE, &dio_bio->bi_flags);
+ dio_end_io(dio_bio, err);
+ bio_put(bio);
}
static int __btrfs_submit_bio_start_direct_io(struct inode *inode, int rw,
@@ -7065,10 +7077,10 @@ static void btrfs_end_dio_bio(struct bio *bio, int err)
if (!atomic_dec_and_test(&dip->pending_bios))
goto out;
- if (dip->errors)
+ if (dip->errors) {
bio_io_error(dip->orig_bio);
- else {
- set_bit(BIO_UPTODATE, &dip->orig_bio->bi_flags);
+ } else {
+ set_bit(BIO_UPTODATE, &dip->dio_bio->bi_flags);
bio_endio(dip->orig_bio, 0);
}
out:
@@ -7243,25 +7255,34 @@ out_err:
return 0;
}
-static void btrfs_submit_direct(int rw, struct bio *bio, struct inode *inode,
- loff_t file_offset)
+static void btrfs_submit_direct(int rw, struct bio *dio_bio,
+ struct inode *inode, loff_t file_offset)
{
struct btrfs_root *root = BTRFS_I(inode)->root;
struct btrfs_dio_private *dip;
- struct bio_vec *bvec = bio->bi_io_vec;
+ struct bio_vec *bvec = dio_bio->bi_io_vec;
+ struct bio *io_bio;
int skip_sum;
int write = rw & REQ_WRITE;
int ret = 0;
skip_sum = BTRFS_I(inode)->flags & BTRFS_INODE_NODATASUM;
+ io_bio = btrfs_bio_clone(dio_bio, GFP_NOFS);
+
+ if (!io_bio) {
+ ret = -ENOMEM;
+ goto free_ordered;
+ }
+
dip = kmalloc(sizeof(*dip), GFP_NOFS);
if (!dip) {
ret = -ENOMEM;
- goto free_ordered;
+ goto free_io_bio;
}
- dip->private = bio->bi_private;
+ dip->private = dio_bio->bi_private;
+ io_bio->bi_private = dio_bio->bi_private;
dip->inode = inode;
dip->logical_offset = file_offset;
@@ -7269,22 +7290,27 @@ static void btrfs_submit_direct(int rw, struct bio *bio, struct inode *inode,
do {
dip->bytes += bvec->bv_len;
bvec++;
- } while (bvec <= (bio->bi_io_vec + bio->bi_vcnt - 1));
+ } while (bvec <= (dio_bio->bi_io_vec + dio_bio->bi_vcnt - 1));
- dip->disk_bytenr = (u64)bio->bi_sector << 9;
- bio->bi_private = dip;
+ dip->disk_bytenr = (u64)dio_bio->bi_sector << 9;
+ io_bio->bi_private = dip;
dip->errors = 0;
- dip->orig_bio = bio;
+ dip->orig_bio = io_bio;
+ dip->dio_bio = dio_bio;
atomic_set(&dip->pending_bios, 0);
if (write)
- bio->bi_end_io = btrfs_endio_direct_write;
+ io_bio->bi_end_io = btrfs_endio_direct_write;
else
- bio->bi_end_io = btrfs_endio_direct_read;
+ io_bio->bi_end_io = btrfs_endio_direct_read;
ret = btrfs_submit_direct_hook(rw, dip, skip_sum);
if (!ret)
return;
+
+free_io_bio:
+ bio_put(io_bio);
+
free_ordered:
/*
* If this is a write, we need to clean up the reserved space and kill
@@ -7300,7 +7326,7 @@ free_ordered:
btrfs_put_ordered_extent(ordered);
btrfs_put_ordered_extent(ordered);
}
- bio_endio(bio, ret);
+ bio_endio(dio_bio, ret);
}
static ssize_t check_direct_IO(struct btrfs_root *root, int rw, struct kiocb *iocb,
@@ -7979,7 +8005,6 @@ void btrfs_destroy_inode(struct inode *inode)
inode_tree_del(inode);
btrfs_drop_extent_cache(inode, 0, (u64)-1, 0);
free:
- btrfs_remove_delayed_node(inode);
call_rcu(&inode->i_rcu, btrfs_i_callback);
}
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 0de4a2f..0f81d67 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -1801,7 +1801,11 @@ static noinline int copy_to_sk(struct btrfs_root *root,
item_off = btrfs_item_ptr_offset(leaf, i);
item_len = btrfs_item_size_nr(leaf, i);
- if (item_len > BTRFS_SEARCH_ARGS_BUFSIZE)
+ btrfs_item_key_to_cpu(leaf, key, i);
+ if (!key_in_sk(key, sk))
+ continue;
+
+ if (sizeof(sh) + item_len > BTRFS_SEARCH_ARGS_BUFSIZE)
item_len = 0;
if (sizeof(sh) + item_len + *sk_offset >
@@ -1810,10 +1814,6 @@ static noinline int copy_to_sk(struct btrfs_root *root,
goto overflow;
}
- btrfs_item_key_to_cpu(leaf, key, i);
- if (!key_in_sk(key, sk))
- continue;
-
sh.objectid = key->objectid;
sh.offset = key->offset;
sh.type = key->type;
diff --git a/fs/btrfs/raid56.c b/fs/btrfs/raid56.c
index 0740621..0525e13 100644
--- a/fs/btrfs/raid56.c
+++ b/fs/btrfs/raid56.c
@@ -1050,7 +1050,7 @@ static int rbio_add_io_page(struct btrfs_raid_bio *rbio,
}
/* put a new bio on the list */
- bio = bio_alloc(GFP_NOFS, bio_max_len >> PAGE_SHIFT?:1);
+ bio = btrfs_io_bio_alloc(GFP_NOFS, bio_max_len >> PAGE_SHIFT?:1);
if (!bio)
return -ENOMEM;
diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c
index 704a1b8..395b820 100644
--- a/fs/btrfs/relocation.c
+++ b/fs/btrfs/relocation.c
@@ -1773,7 +1773,7 @@ again:
if (!eb || !extent_buffer_uptodate(eb)) {
ret = (!eb) ? -ENOMEM : -EIO;
free_extent_buffer(eb);
- return ret;
+ break;
}
btrfs_tree_lock(eb);
if (cow) {
@@ -3350,6 +3350,11 @@ static int delete_block_group_cache(struct btrfs_fs_info *fs_info,
}
truncate:
+ ret = btrfs_check_trunc_cache_free_space(root,
+ &fs_info->global_block_rsv);
+ if (ret)
+ goto out;
+
path = btrfs_alloc_path();
if (!path) {
ret = -ENOMEM;
diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c
index f489e24..79bd479 100644
--- a/fs/btrfs/scrub.c
+++ b/fs/btrfs/scrub.c
@@ -1296,7 +1296,7 @@ static void scrub_recheck_block(struct btrfs_fs_info *fs_info,
}
WARN_ON(!page->page);
- bio = bio_alloc(GFP_NOFS, 1);
+ bio = btrfs_io_bio_alloc(GFP_NOFS, 1);
if (!bio) {
page->io_error = 1;
sblock->no_io_error_seen = 0;
@@ -1431,7 +1431,7 @@ static int scrub_repair_page_from_good_copy(struct scrub_block *sblock_bad,
return -EIO;
}
- bio = bio_alloc(GFP_NOFS, 1);
+ bio = btrfs_io_bio_alloc(GFP_NOFS, 1);
if (!bio)
return -EIO;
bio->bi_bdev = page_bad->dev->bdev;
@@ -1522,7 +1522,7 @@ again:
sbio->dev = wr_ctx->tgtdev;
bio = sbio->bio;
if (!bio) {
- bio = bio_alloc(GFP_NOFS, wr_ctx->pages_per_wr_bio);
+ bio = btrfs_io_bio_alloc(GFP_NOFS, wr_ctx->pages_per_wr_bio);
if (!bio) {
mutex_unlock(&wr_ctx->wr_lock);
return -ENOMEM;
@@ -1930,7 +1930,7 @@ again:
sbio->dev = spage->dev;
bio = sbio->bio;
if (!bio) {
- bio = bio_alloc(GFP_NOFS, sctx->pages_per_rd_bio);
+ bio = btrfs_io_bio_alloc(GFP_NOFS, sctx->pages_per_rd_bio);
if (!bio)
return -ENOMEM;
sbio->bio = bio;
@@ -3307,7 +3307,7 @@ static int write_page_nocow(struct scrub_ctx *sctx,
"btrfs: scrub write_page_nocow(bdev == NULL) is unexpected!\n");
return -EIO;
}
- bio = bio_alloc(GFP_NOFS, 1);
+ bio = btrfs_io_bio_alloc(GFP_NOFS, 1);
if (!bio) {
spin_lock(&sctx->stat_lock);
sctx->stat.malloc_errors++;
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index a4807ce..f0857e0 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -1263,6 +1263,7 @@ static int btrfs_remount(struct super_block *sb, int *flags, char *data)
btrfs_dev_replace_suspend_for_unmount(fs_info);
btrfs_scrub_cancel(fs_info);
+ btrfs_pause_balance(fs_info);
ret = btrfs_commit_super(root);
if (ret)
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 0e925ce..8bffb91 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -3120,14 +3120,13 @@ int btrfs_balance(struct btrfs_balance_control *bctl,
allowed = BTRFS_AVAIL_ALLOC_BIT_SINGLE;
if (num_devices == 1)
allowed |= BTRFS_BLOCK_GROUP_DUP;
- else if (num_devices < 4)
+ else if (num_devices > 1)
allowed |= (BTRFS_BLOCK_GROUP_RAID0 | BTRFS_BLOCK_GROUP_RAID1);
- else
- allowed |= (BTRFS_BLOCK_GROUP_RAID0 | BTRFS_BLOCK_GROUP_RAID1 |
- BTRFS_BLOCK_GROUP_RAID10 |
- BTRFS_BLOCK_GROUP_RAID5 |
- BTRFS_BLOCK_GROUP_RAID6);
-
+ if (num_devices > 2)
+ allowed |= BTRFS_BLOCK_GROUP_RAID5;
+ if (num_devices > 3)
+ allowed |= (BTRFS_BLOCK_GROUP_RAID10 |
+ BTRFS_BLOCK_GROUP_RAID6);
if ((bctl->data.flags & BTRFS_BALANCE_ARGS_CONVERT) &&
(!alloc_profile_is_valid(bctl->data.target, 1) ||
(bctl->data.target & ~allowed))) {
@@ -5019,42 +5018,16 @@ int btrfs_rmap_block(struct btrfs_mapping_tree *map_tree,
return 0;
}
-static void *merge_stripe_index_into_bio_private(void *bi_private,
- unsigned int stripe_index)
-{
- /*
- * with single, dup, RAID0, RAID1 and RAID10, stripe_index is
- * at most 1.
- * The alternative solution (instead of stealing bits from the
- * pointer) would be to allocate an intermediate structure
- * that contains the old private pointer plus the stripe_index.
- */
- BUG_ON((((uintptr_t)bi_private) & 3) != 0);
- BUG_ON(stripe_index > 3);
- return (void *)(((uintptr_t)bi_private) | stripe_index);
-}
-
-static struct btrfs_bio *extract_bbio_from_bio_private(void *bi_private)
-{
- return (struct btrfs_bio *)(((uintptr_t)bi_private) & ~((uintptr_t)3));
-}
-
-static unsigned int extract_stripe_index_from_bio_private(void *bi_private)
-{
- return (unsigned int)((uintptr_t)bi_private) & 3;
-}
-
static void btrfs_end_bio(struct bio *bio, int err)
{
- struct btrfs_bio *bbio = extract_bbio_from_bio_private(bio->bi_private);
+ struct btrfs_bio *bbio = bio->bi_private;
int is_orig_bio = 0;
if (err) {
atomic_inc(&bbio->error);
if (err == -EIO || err == -EREMOTEIO) {
unsigned int stripe_index =
- extract_stripe_index_from_bio_private(
- bio->bi_private);
+ btrfs_io_bio(bio)->stripe_index;
struct btrfs_device *dev;
BUG_ON(stripe_index >= bbio->num_stripes);
@@ -5084,8 +5057,7 @@ static void btrfs_end_bio(struct bio *bio, int err)
}
bio->bi_private = bbio->private;
bio->bi_end_io = bbio->end_io;
- bio->bi_bdev = (struct block_device *)
- (unsigned long)bbio->mirror_num;
+ btrfs_io_bio(bio)->mirror_num = bbio->mirror_num;
/* only send an error to the higher layers if it is
* beyond the tolerance of the btrfs bio
*/
@@ -5211,8 +5183,7 @@ static void submit_stripe_bio(struct btrfs_root *root, struct btrfs_bio *bbio,
struct btrfs_device *dev = bbio->stripes[dev_nr].dev;
bio->bi_private = bbio;
- bio->bi_private = merge_stripe_index_into_bio_private(
- bio->bi_private, (unsigned int)dev_nr);
+ btrfs_io_bio(bio)->stripe_index = dev_nr;
bio->bi_end_io = btrfs_end_bio;
bio->bi_sector = physical >> 9;
#ifdef DEBUG
@@ -5273,8 +5244,7 @@ static void bbio_error(struct btrfs_bio *bbio, struct bio *bio, u64 logical)
if (atomic_dec_and_test(&bbio->stripes_pending)) {
bio->bi_private = bbio->private;
bio->bi_end_io = bbio->end_io;
- bio->bi_bdev = (struct block_device *)
- (unsigned long)bbio->mirror_num;
+ btrfs_io_bio(bio)->mirror_num = bbio->mirror_num;
bio->bi_sector = logical >> 9;
kfree(bbio);
bio_endio(bio, -EIO);
@@ -5352,7 +5322,7 @@ int btrfs_map_bio(struct btrfs_root *root, int rw, struct bio *bio,
}
if (dev_nr < total_devs - 1) {
- bio = bio_clone(first_bio, GFP_NOFS);
+ bio = btrfs_bio_clone(first_bio, GFP_NOFS);
BUG_ON(!bio); /* -ENOMEM */
} else {
bio = first_bio;
diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h
index 845ccbb..f6247e2 100644
--- a/fs/btrfs/volumes.h
+++ b/fs/btrfs/volumes.h
@@ -152,6 +152,26 @@ struct btrfs_fs_devices {
int rotating;
};
+/*
+ * we need the mirror number and stripe index to be passed around
+ * the call chain while we are processing end_io (especially errors).
+ * Really, what we need is a btrfs_bio structure that has this info
+ * and is properly sized with its stripe array, but we're not there
+ * quite yet. We have our own btrfs bioset, and all of the bios
+ * we allocate are actually btrfs_io_bios. We'll cram as much of
+ * struct btrfs_bio as we can into this over time.
+ */
+struct btrfs_io_bio {
+ unsigned long mirror_num;
+ unsigned long stripe_index;
+ struct bio bio;
+};
+
+static inline struct btrfs_io_bio *btrfs_io_bio(struct bio *bio)
+{
+ return container_of(bio, struct btrfs_io_bio, bio);
+}
+
struct btrfs_bio_stripe {
struct btrfs_device *dev;
u64 physical;
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index fc30251..20efd81 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -171,7 +171,8 @@ cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr)
if (fattr->cf_flags & CIFS_FATTR_DFS_REFERRAL)
inode->i_flags |= S_AUTOMOUNT;
- cifs_set_ops(inode);
+ if (inode->i_state & I_NEW)
+ cifs_set_ops(inode);
}
void
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 0aabb34..5aae3d1 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -209,7 +209,6 @@ typedef struct ext4_io_end {
ssize_t size; /* size of the extent */
struct kiocb *iocb; /* iocb struct for AIO */
int result; /* error value for AIO */
- atomic_t count; /* reference counter */
} ext4_io_end_t;
struct ext4_io_submit {
@@ -2651,14 +2650,11 @@ extern int ext4_move_extents(struct file *o_filp, struct file *d_filp,
/* page-io.c */
extern int __init ext4_init_pageio(void);
+extern void ext4_add_complete_io(ext4_io_end_t *io_end);
extern void ext4_exit_pageio(void);
extern void ext4_ioend_shutdown(struct inode *);
+extern void ext4_free_io_end(ext4_io_end_t *io);
extern ext4_io_end_t *ext4_init_io_end(struct inode *inode, gfp_t flags);
-extern ext4_io_end_t *ext4_get_io_end(ext4_io_end_t *io_end);
-extern int ext4_put_io_end(ext4_io_end_t *io_end);
-extern void ext4_put_io_end_defer(ext4_io_end_t *io_end);
-extern void ext4_io_submit_init(struct ext4_io_submit *io,
- struct writeback_control *wbc);
extern void ext4_end_io_work(struct work_struct *work);
extern void ext4_io_submit(struct ext4_io_submit *io);
extern int ext4_bio_write_page(struct ext4_io_submit *io,
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 107936d..bc0f1910 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -3642,7 +3642,7 @@ int ext4_find_delalloc_range(struct inode *inode,
{
struct extent_status es;
- ext4_es_find_delayed_extent(inode, lblk_start, &es);
+ ext4_es_find_delayed_extent_range(inode, lblk_start, lblk_end, &es);
if (es.es_len == 0)
return 0; /* there is no delay extent in this tree */
else if (es.es_lblk <= lblk_start &&
@@ -4608,9 +4608,10 @@ static int ext4_find_delayed_extent(struct inode *inode,
struct extent_status es;
ext4_lblk_t block, next_del;
- ext4_es_find_delayed_extent(inode, newes->es_lblk, &es);
-
if (newes->es_pblk == 0) {
+ ext4_es_find_delayed_extent_range(inode, newes->es_lblk,
+ newes->es_lblk + newes->es_len - 1, &es);
+
/*
* No extent in extent-tree contains block @newes->es_pblk,
* then the block may stay in 1)a hole or 2)delayed-extent.
@@ -4630,7 +4631,7 @@ static int ext4_find_delayed_extent(struct inode *inode,
}
block = newes->es_lblk + newes->es_len;
- ext4_es_find_delayed_extent(inode, block, &es);
+ ext4_es_find_delayed_extent_range(inode, block, EXT_MAX_BLOCKS, &es);
if (es.es_len == 0)
next_del = EXT_MAX_BLOCKS;
else
diff --git a/fs/ext4/extents_status.c b/fs/ext4/extents_status.c
index fe3337a..e6941e6 100644
--- a/fs/ext4/extents_status.c
+++ b/fs/ext4/extents_status.c
@@ -232,14 +232,16 @@ static struct extent_status *__es_tree_search(struct rb_root *root,
}
/*
- * ext4_es_find_delayed_extent: find the 1st delayed extent covering @es->lblk
- * if it exists, otherwise, the next extent after @es->lblk.
+ * ext4_es_find_delayed_extent_range: find the 1st delayed extent covering
+ * @es->lblk if it exists, otherwise, the next extent after @es->lblk.
*
* @inode: the inode which owns delayed extents
* @lblk: the offset where we start to search
+ * @end: the offset where we stop to search
* @es: delayed extent that we found
*/
-void ext4_es_find_delayed_extent(struct inode *inode, ext4_lblk_t lblk,
+void ext4_es_find_delayed_extent_range(struct inode *inode,
+ ext4_lblk_t lblk, ext4_lblk_t end,
struct extent_status *es)
{
struct ext4_es_tree *tree = NULL;
@@ -247,7 +249,8 @@ void ext4_es_find_delayed_extent(struct inode *inode, ext4_lblk_t lblk,
struct rb_node *node;
BUG_ON(es == NULL);
- trace_ext4_es_find_delayed_extent_enter(inode, lblk);
+ BUG_ON(end < lblk);
+ trace_ext4_es_find_delayed_extent_range_enter(inode, lblk);
read_lock(&EXT4_I(inode)->i_es_lock);
tree = &EXT4_I(inode)->i_es_tree;
@@ -270,6 +273,10 @@ out:
if (es1 && !ext4_es_is_delayed(es1)) {
while ((node = rb_next(&es1->rb_node)) != NULL) {
es1 = rb_entry(node, struct extent_status, rb_node);
+ if (es1->es_lblk > end) {
+ es1 = NULL;
+ break;
+ }
if (ext4_es_is_delayed(es1))
break;
}
@@ -285,7 +292,7 @@ out:
read_unlock(&EXT4_I(inode)->i_es_lock);
ext4_es_lru_add(inode);
- trace_ext4_es_find_delayed_extent_exit(inode, es);
+ trace_ext4_es_find_delayed_extent_range_exit(inode, es);
}
static struct extent_status *
diff --git a/fs/ext4/extents_status.h b/fs/ext4/extents_status.h
index d8e2d4d..f740eb03 100644
--- a/fs/ext4/extents_status.h
+++ b/fs/ext4/extents_status.h
@@ -62,7 +62,8 @@ extern int ext4_es_insert_extent(struct inode *inode, ext4_lblk_t lblk,
unsigned long long status);
extern int ext4_es_remove_extent(struct inode *inode, ext4_lblk_t lblk,
ext4_lblk_t len);
-extern void ext4_es_find_delayed_extent(struct inode *inode, ext4_lblk_t lblk,
+extern void ext4_es_find_delayed_extent_range(struct inode *inode,
+ ext4_lblk_t lblk, ext4_lblk_t end,
struct extent_status *es);
extern int ext4_es_lookup_extent(struct inode *inode, ext4_lblk_t lblk,
struct extent_status *es);
diff --git a/fs/ext4/file.c b/fs/ext4/file.c
index 4959e29..b1b4d51 100644
--- a/fs/ext4/file.c
+++ b/fs/ext4/file.c
@@ -465,7 +465,7 @@ static loff_t ext4_seek_data(struct file *file, loff_t offset, loff_t maxsize)
* If there is a delay extent at this offset,
* it will be as a data.
*/
- ext4_es_find_delayed_extent(inode, last, &es);
+ ext4_es_find_delayed_extent_range(inode, last, last, &es);
if (es.es_len != 0 && in_range(last, es.es_lblk, es.es_len)) {
if (last != start)
dataoff = last << blkbits;
@@ -548,7 +548,7 @@ static loff_t ext4_seek_hole(struct file *file, loff_t offset, loff_t maxsize)
* If there is a delay extent at this offset,
* we will skip this extent.
*/
- ext4_es_find_delayed_extent(inode, last, &es);
+ ext4_es_find_delayed_extent_range(inode, last, last, &es);
if (es.es_len != 0 && in_range(last, es.es_lblk, es.es_len)) {
last = es.es_lblk + es.es_len;
holeoff = last << blkbits;
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 0723774..d6382b8 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -1488,10 +1488,7 @@ static int mpage_da_submit_io(struct mpage_da_data *mpd,
struct ext4_io_submit io_submit;
BUG_ON(mpd->next_page <= mpd->first_page);
- ext4_io_submit_init(&io_submit, mpd->wbc);
- io_submit.io_end = ext4_init_io_end(inode, GFP_NOFS);
- if (!io_submit.io_end)
- return -ENOMEM;
+ memset(&io_submit, 0, sizeof(io_submit));
/*
* We need to start from the first_page to the next_page - 1
* to make sure we also write the mapped dirty buffer_heads.
@@ -1579,8 +1576,6 @@ static int mpage_da_submit_io(struct mpage_da_data *mpd,
pagevec_release(&pvec);
}
ext4_io_submit(&io_submit);
- /* Drop io_end reference we got from init */
- ext4_put_io_end_defer(io_submit.io_end);
return ret;
}
@@ -2239,16 +2234,9 @@ static int ext4_writepage(struct page *page,
*/
return __ext4_journalled_writepage(page, len);
- ext4_io_submit_init(&io_submit, wbc);
- io_submit.io_end = ext4_init_io_end(inode, GFP_NOFS);
- if (!io_submit.io_end) {
- redirty_page_for_writepage(wbc, page);
- return -ENOMEM;
- }
+ memset(&io_submit, 0, sizeof(io_submit));
ret = ext4_bio_write_page(&io_submit, page, len, wbc);
ext4_io_submit(&io_submit);
- /* Drop io_end reference we got from init */
- ext4_put_io_end_defer(io_submit.io_end);
return ret;
}
@@ -3079,13 +3067,9 @@ static void ext4_end_io_dio(struct kiocb *iocb, loff_t offset,
struct inode *inode = file_inode(iocb->ki_filp);
ext4_io_end_t *io_end = iocb->private;
- /* if not async direct IO just return */
- if (!io_end) {
- inode_dio_done(inode);
- if (is_async)
- aio_complete(iocb, ret, 0);
- return;
- }
+ /* if not async direct IO or dio with 0 bytes write, just return */
+ if (!io_end || !size)
+ goto out;
ext_debug("ext4_end_io_dio(): io_end 0x%p "
"for inode %lu, iocb 0x%p, offset %llu, size %zd\n",
@@ -3093,13 +3077,25 @@ static void ext4_end_io_dio(struct kiocb *iocb, loff_t offset,
size);
iocb->private = NULL;
+
+ /* if not aio dio with unwritten extents, just free io and return */
+ if (!(io_end->flag & EXT4_IO_END_UNWRITTEN)) {
+ ext4_free_io_end(io_end);
+out:
+ inode_dio_done(inode);
+ if (is_async)
+ aio_complete(iocb, ret, 0);
+ return;
+ }
+
io_end->offset = offset;
io_end->size = size;
if (is_async) {
io_end->iocb = iocb;
io_end->result = ret;
}
- ext4_put_io_end_defer(io_end);
+
+ ext4_add_complete_io(io_end);
}
/*
@@ -3133,7 +3129,6 @@ static ssize_t ext4_ext_direct_IO(int rw, struct kiocb *iocb,
get_block_t *get_block_func = NULL;
int dio_flags = 0;
loff_t final_size = offset + count;
- ext4_io_end_t *io_end = NULL;
/* Use the old path for reads and writes beyond i_size. */
if (rw != WRITE || final_size > inode->i_size)
@@ -3172,16 +3167,13 @@ static ssize_t ext4_ext_direct_IO(int rw, struct kiocb *iocb,
iocb->private = NULL;
ext4_inode_aio_set(inode, NULL);
if (!is_sync_kiocb(iocb)) {
- io_end = ext4_init_io_end(inode, GFP_NOFS);
+ ext4_io_end_t *io_end = ext4_init_io_end(inode, GFP_NOFS);
if (!io_end) {
ret = -ENOMEM;
goto retake_lock;
}
io_end->flag |= EXT4_IO_END_DIRECT;
- /*
- * Grab reference for DIO. Will be dropped in ext4_end_io_dio()
- */
- iocb->private = ext4_get_io_end(io_end);
+ iocb->private = io_end;
/*
* we save the io structure for current async direct
* IO, so that later ext4_map_blocks() could flag the
@@ -3205,27 +3197,26 @@ static ssize_t ext4_ext_direct_IO(int rw, struct kiocb *iocb,
NULL,
dio_flags);
+ if (iocb->private)
+ ext4_inode_aio_set(inode, NULL);
/*
- * Put our reference to io_end. This can free the io_end structure e.g.
- * in sync IO case or in case of error. It can even perform extent
- * conversion if all bios we submitted finished before we got here.
- * Note that in that case iocb->private can be already set to NULL
- * here.
+ * The io_end structure takes a reference to the inode, that
+ * structure needs to be destroyed and the reference to the
+ * inode need to be dropped, when IO is complete, even with 0
+ * byte write, or failed.
+ *
+ * In the successful AIO DIO case, the io_end structure will
+ * be destroyed and the reference to the inode will be dropped
+ * after the end_io call back function is called.
+ *
+ * In the case there is 0 byte write, or error case, since VFS
+ * direct IO won't invoke the end_io call back function, we
+ * need to free the end_io structure here.
*/
- if (io_end) {
- ext4_inode_aio_set(inode, NULL);
- ext4_put_io_end(io_end);
- /*
- * In case of error or no write ext4_end_io_dio() was not
- * called so we have to put iocb's reference.
- */
- if (ret <= 0 && ret != -EIOCBQUEUED) {
- WARN_ON(iocb->private != io_end);
- ext4_put_io_end(io_end);
- iocb->private = NULL;
- }
- }
- if (ret > 0 && !overwrite && ext4_test_inode_state(inode,
+ if (ret != -EIOCBQUEUED && ret <= 0 && iocb->private) {
+ ext4_free_io_end(iocb->private);
+ iocb->private = NULL;
+ } else if (ret > 0 && !overwrite && ext4_test_inode_state(inode,
EXT4_STATE_DIO_UNWRITTEN)) {
int err;
/*
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index b1ed9e0..def8408 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -2105,7 +2105,11 @@ repeat:
group = ac->ac_g_ex.fe_group;
for (i = 0; i < ngroups; group++, i++) {
- if (group == ngroups)
+ /*
+ * Artificially restricted ngroups for non-extent
+ * files makes group > ngroups possible on first loop.
+ */
+ if (group >= ngroups)
group = 0;
/* This now checks without needing the buddy page */
diff --git a/fs/ext4/page-io.c b/fs/ext4/page-io.c
index 19599bd..4acf1f7 100644
--- a/fs/ext4/page-io.c
+++ b/fs/ext4/page-io.c
@@ -62,28 +62,15 @@ void ext4_ioend_shutdown(struct inode *inode)
cancel_work_sync(&EXT4_I(inode)->i_unwritten_work);
}
-static void ext4_release_io_end(ext4_io_end_t *io_end)
+void ext4_free_io_end(ext4_io_end_t *io)
{
- BUG_ON(!list_empty(&io_end->list));
- BUG_ON(io_end->flag & EXT4_IO_END_UNWRITTEN);
-
- if (atomic_dec_and_test(&EXT4_I(io_end->inode)->i_ioend_count))
- wake_up_all(ext4_ioend_wq(io_end->inode));
- if (io_end->flag & EXT4_IO_END_DIRECT)
- inode_dio_done(io_end->inode);
- if (io_end->iocb)
- aio_complete(io_end->iocb, io_end->result, 0);
- kmem_cache_free(io_end_cachep, io_end);
-}
-
-static void ext4_clear_io_unwritten_flag(ext4_io_end_t *io_end)
-{
- struct inode *inode = io_end->inode;
+ BUG_ON(!io);
+ BUG_ON(!list_empty(&io->list));
+ BUG_ON(io->flag & EXT4_IO_END_UNWRITTEN);
- io_end->flag &= ~EXT4_IO_END_UNWRITTEN;
- /* Wake up anyone waiting on unwritten extent conversion */
- if (atomic_dec_and_test(&EXT4_I(inode)->i_unwritten))
- wake_up_all(ext4_ioend_wq(inode));
+ if (atomic_dec_and_test(&EXT4_I(io->inode)->i_ioend_count))
+ wake_up_all(ext4_ioend_wq(io->inode));
+ kmem_cache_free(io_end_cachep, io);
}
/* check a range of space and convert unwritten extents to written. */
@@ -106,8 +93,13 @@ static int ext4_end_io(ext4_io_end_t *io)
"(inode %lu, offset %llu, size %zd, error %d)",
inode->i_ino, offset, size, ret);
}
- ext4_clear_io_unwritten_flag(io);
- ext4_release_io_end(io);
+ /* Wake up anyone waiting on unwritten extent conversion */
+ if (atomic_dec_and_test(&EXT4_I(inode)->i_unwritten))
+ wake_up_all(ext4_ioend_wq(inode));
+ if (io->flag & EXT4_IO_END_DIRECT)
+ inode_dio_done(inode);
+ if (io->iocb)
+ aio_complete(io->iocb, io->result, 0);
return ret;
}
@@ -138,7 +130,7 @@ static void dump_completed_IO(struct inode *inode)
}
/* Add the io_end to per-inode completed end_io list. */
-static void ext4_add_complete_io(ext4_io_end_t *io_end)
+void ext4_add_complete_io(ext4_io_end_t *io_end)
{
struct ext4_inode_info *ei = EXT4_I(io_end->inode);
struct workqueue_struct *wq;
@@ -175,6 +167,8 @@ static int ext4_do_flush_completed_IO(struct inode *inode)
err = ext4_end_io(io);
if (unlikely(!ret && err))
ret = err;
+ io->flag &= ~EXT4_IO_END_UNWRITTEN;
+ ext4_free_io_end(io);
}
return ret;
}
@@ -206,43 +200,10 @@ ext4_io_end_t *ext4_init_io_end(struct inode *inode, gfp_t flags)
atomic_inc(&EXT4_I(inode)->i_ioend_count);
io->inode = inode;
INIT_LIST_HEAD(&io->list);
- atomic_set(&io->count, 1);
}
return io;
}
-void ext4_put_io_end_defer(ext4_io_end_t *io_end)
-{
- if (atomic_dec_and_test(&io_end->count)) {
- if (!(io_end->flag & EXT4_IO_END_UNWRITTEN) || !io_end->size) {
- ext4_release_io_end(io_end);
- return;
- }
- ext4_add_complete_io(io_end);
- }
-}
-
-int ext4_put_io_end(ext4_io_end_t *io_end)
-{
- int err = 0;
-
- if (atomic_dec_and_test(&io_end->count)) {
- if (io_end->flag & EXT4_IO_END_UNWRITTEN) {
- err = ext4_convert_unwritten_extents(io_end->inode,
- io_end->offset, io_end->size);
- ext4_clear_io_unwritten_flag(io_end);
- }
- ext4_release_io_end(io_end);
- }
- return err;
-}
-
-ext4_io_end_t *ext4_get_io_end(ext4_io_end_t *io_end)
-{
- atomic_inc(&io_end->count);
- return io_end;
-}
-
/*
* Print an buffer I/O error compatible with the fs/buffer.c. This
* provides compatibility with dmesg scrapers that look for a specific
@@ -325,7 +286,12 @@ static void ext4_end_bio(struct bio *bio, int error)
bi_sector >> (inode->i_blkbits - 9));
}
- ext4_put_io_end_defer(io_end);
+ if (!(io_end->flag & EXT4_IO_END_UNWRITTEN)) {
+ ext4_free_io_end(io_end);
+ return;
+ }
+
+ ext4_add_complete_io(io_end);
}
void ext4_io_submit(struct ext4_io_submit *io)
@@ -339,37 +305,40 @@ void ext4_io_submit(struct ext4_io_submit *io)
bio_put(io->io_bio);
}
io->io_bio = NULL;
-}
-
-void ext4_io_submit_init(struct ext4_io_submit *io,
- struct writeback_control *wbc)
-{
- io->io_op = (wbc->sync_mode == WB_SYNC_ALL ? WRITE_SYNC : WRITE);
- io->io_bio = NULL;
+ io->io_op = 0;
io->io_end = NULL;
}
-static int io_submit_init_bio(struct ext4_io_submit *io,
- struct buffer_head *bh)
+static int io_submit_init(struct ext4_io_submit *io,
+ struct inode *inode,
+ struct writeback_control *wbc,
+ struct buffer_head *bh)
{
+ ext4_io_end_t *io_end;
+ struct page *page = bh->b_page;
int nvecs = bio_get_nr_vecs(bh->b_bdev);
struct bio *bio;
+ io_end = ext4_init_io_end(inode, GFP_NOFS);
+ if (!io_end)
+ return -ENOMEM;
bio = bio_alloc(GFP_NOIO, min(nvecs, BIO_MAX_PAGES));
bio->bi_sector = bh->b_blocknr * (bh->b_size >> 9);
bio->bi_bdev = bh->b_bdev;
+ bio->bi_private = io->io_end = io_end;
bio->bi_end_io = ext4_end_bio;
- bio->bi_private = ext4_get_io_end(io->io_end);
- if (!io->io_end->size)
- io->io_end->offset = (bh->b_page->index << PAGE_CACHE_SHIFT)
- + bh_offset(bh);
+
+ io_end->offset = (page->index << PAGE_CACHE_SHIFT) + bh_offset(bh);
+
io->io_bio = bio;
+ io->io_op = (wbc->sync_mode == WB_SYNC_ALL ? WRITE_SYNC : WRITE);
io->io_next_block = bh->b_blocknr;
return 0;
}
static int io_submit_add_bh(struct ext4_io_submit *io,
struct inode *inode,
+ struct writeback_control *wbc,
struct buffer_head *bh)
{
ext4_io_end_t *io_end;
@@ -380,18 +349,18 @@ submit_and_retry:
ext4_io_submit(io);
}
if (io->io_bio == NULL) {
- ret = io_submit_init_bio(io, bh);
+ ret = io_submit_init(io, inode, wbc, bh);
if (ret)
return ret;
}
- ret = bio_add_page(io->io_bio, bh->b_page, bh->b_size, bh_offset(bh));
- if (ret != bh->b_size)
- goto submit_and_retry;
io_end = io->io_end;
if (test_clear_buffer_uninit(bh))
ext4_set_io_unwritten_flag(inode, io_end);
- io_end->size += bh->b_size;
+ io->io_end->size += bh->b_size;
io->io_next_block++;
+ ret = bio_add_page(io->io_bio, bh->b_page, bh->b_size, bh_offset(bh));
+ if (ret != bh->b_size)
+ goto submit_and_retry;
return 0;
}
@@ -463,7 +432,7 @@ int ext4_bio_write_page(struct ext4_io_submit *io,
do {
if (!buffer_async_write(bh))
continue;
- ret = io_submit_add_bh(io, inode, bh);
+ ret = io_submit_add_bh(io, inode, wbc, bh);
if (ret) {
/*
* We only get here on ENOMEM. Not much else
diff --git a/fs/fat/inode.c b/fs/fat/inode.c
index dfce656..5d4513c 100644
--- a/fs/fat/inode.c
+++ b/fs/fat/inode.c
@@ -1229,6 +1229,19 @@ static int fat_read_root(struct inode *inode)
return 0;
}
+static unsigned long calc_fat_clusters(struct super_block *sb)
+{
+ struct msdos_sb_info *sbi = MSDOS_SB(sb);
+
+ /* Divide first to avoid overflow */
+ if (sbi->fat_bits != 12) {
+ unsigned long ent_per_sec = sb->s_blocksize * 8 / sbi->fat_bits;
+ return ent_per_sec * sbi->fat_length;
+ }
+
+ return sbi->fat_length * sb->s_blocksize * 8 / sbi->fat_bits;
+}
+
/*
* Read the super block of an MS-DOS FS.
*/
@@ -1434,7 +1447,7 @@ int fat_fill_super(struct super_block *sb, void *data, int silent, int isvfat,
sbi->dirty = b->fat16.state & FAT_STATE_DIRTY;
/* check that FAT table does not overflow */
- fat_clusters = sbi->fat_length * sb->s_blocksize * 8 / sbi->fat_bits;
+ fat_clusters = calc_fat_clusters(sb);
total_clusters = min(total_clusters, fat_clusters - FAT_START_ENT);
if (total_clusters > MAX_FAT(sb)) {
if (!silent)
diff --git a/fs/gfs2/Kconfig b/fs/gfs2/Kconfig
index eb08c9e..5a376ab 100644
--- a/fs/gfs2/Kconfig
+++ b/fs/gfs2/Kconfig
@@ -26,7 +26,7 @@ config GFS2_FS
config GFS2_FS_LOCKING_DLM
bool "GFS2 DLM locking"
depends on (GFS2_FS!=n) && NET && INET && (IPV6 || IPV6=n) && \
- HOTPLUG && DLM && CONFIGFS_FS && SYSFS
+ HOTPLUG && CONFIGFS_FS && SYSFS && (DLM=y || DLM=GFS2_FS)
help
Multiple node locking module for GFS2
diff --git a/fs/gfs2/lops.c b/fs/gfs2/lops.c
index c5fa758..68b4c8f 100644
--- a/fs/gfs2/lops.c
+++ b/fs/gfs2/lops.c
@@ -212,7 +212,7 @@ static void gfs2_end_log_write(struct bio *bio, int error)
fs_err(sdp, "Error %d writing to log\n", error);
}
- bio_for_each_segment(bvec, bio, i) {
+ bio_for_each_segment_all(bvec, bio, i) {
page = bvec->bv_page;
if (page_has_buffers(page))
gfs2_end_log_write_bh(sdp, bvec, error);
diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c
index c7c840e..c253b13 100644
--- a/fs/gfs2/quota.c
+++ b/fs/gfs2/quota.c
@@ -121,7 +121,7 @@ static u64 qd2index(struct gfs2_quota_data *qd)
{
struct kqid qid = qd->qd_id;
return (2 * (u64)from_kqid(&init_user_ns, qid)) +
- (qid.type == USRQUOTA) ? 0 : 1;
+ ((qid.type == USRQUOTA) ? 0 : 1);
}
static u64 qd2offset(struct gfs2_quota_data *qd)
@@ -721,7 +721,7 @@ get_a_page:
goto unlock_out;
}
- gfs2_trans_add_meta(ip->i_gl, bh);
+ gfs2_trans_add_data(ip->i_gl, bh);
kaddr = kmap_atomic(page);
if (offset + sizeof(struct gfs2_quota) > PAGE_CACHE_SIZE)
diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c
index 0c5a575..5232525 100644
--- a/fs/gfs2/rgrp.c
+++ b/fs/gfs2/rgrp.c
@@ -1401,9 +1401,14 @@ static void rg_mblk_search(struct gfs2_rgrpd *rgd, struct gfs2_inode *ip,
u32 extlen;
u32 free_blocks = rgd->rd_free_clone - rgd->rd_reserved;
int ret;
+ struct inode *inode = &ip->i_inode;
- extlen = max_t(u32, atomic_read(&rs->rs_sizehint), requested);
- extlen = clamp(extlen, RGRP_RSRV_MINBLKS, free_blocks);
+ if (S_ISDIR(inode->i_mode))
+ extlen = 1;
+ else {
+ extlen = max_t(u32, atomic_read(&rs->rs_sizehint), requested);
+ extlen = clamp(extlen, RGRP_RSRV_MINBLKS, free_blocks);
+ }
if ((rgd->rd_free_clone < rgd->rd_reserved) || (free_blocks < extlen))
return;
diff --git a/fs/hfs/bnode.c b/fs/hfs/bnode.c
index f3b1a15..d3fa6bd 100644
--- a/fs/hfs/bnode.c
+++ b/fs/hfs/bnode.c
@@ -415,7 +415,11 @@ struct hfs_bnode *hfs_bnode_create(struct hfs_btree *tree, u32 num)
spin_lock(&tree->hash_lock);
node = hfs_bnode_findhash(tree, num);
spin_unlock(&tree->hash_lock);
- BUG_ON(node);
+ if (node) {
+ pr_crit("new node %u already hashed?\n", num);
+ WARN_ON(1);
+ return node;
+ }
node = __hfs_bnode_create(tree, num);
if (!node)
return ERR_PTR(-ENOMEM);
diff --git a/fs/nfs/callback_proc.c b/fs/nfs/callback_proc.c
index a13d26e..0bc2768 100644
--- a/fs/nfs/callback_proc.c
+++ b/fs/nfs/callback_proc.c
@@ -414,7 +414,7 @@ __be32 nfs4_callback_sequence(struct cb_sequenceargs *args,
spin_lock(&tbl->slot_tbl_lock);
/* state manager is resetting the session */
- if (test_bit(NFS4_SESSION_DRAINING, &clp->cl_session->session_state)) {
+ if (test_bit(NFS4_SLOT_TBL_DRAINING, &tbl->slot_tbl_state)) {
spin_unlock(&tbl->slot_tbl_lock);
status = htonl(NFS4ERR_DELAY);
/* Return NFS4ERR_BADSESSION if we're draining the session
diff --git a/fs/nfs/callback_xdr.c b/fs/nfs/callback_xdr.c
index 59461c9..a35582c 100644
--- a/fs/nfs/callback_xdr.c
+++ b/fs/nfs/callback_xdr.c
@@ -763,7 +763,7 @@ static void nfs4_callback_free_slot(struct nfs4_session *session)
* A single slot, so highest used slotid is either 0 or -1
*/
tbl->highest_used_slotid = NFS4_NO_SLOT;
- nfs4_session_drain_complete(session, tbl);
+ nfs4_slot_tbl_drain_complete(tbl);
spin_unlock(&tbl->slot_tbl_lock);
}
diff --git a/fs/nfs/nfs4client.c b/fs/nfs/nfs4client.c
index 947b0c9..4cbad5d 100644
--- a/fs/nfs/nfs4client.c
+++ b/fs/nfs/nfs4client.c
@@ -203,7 +203,7 @@ struct nfs_client *nfs4_init_client(struct nfs_client *clp,
__set_bit(NFS_CS_DISCRTRY, &clp->cl_flags);
error = nfs_create_rpc_client(clp, timeparms, RPC_AUTH_GSS_KRB5I);
if (error == -EINVAL)
- error = nfs_create_rpc_client(clp, timeparms, RPC_AUTH_NULL);
+ error = nfs_create_rpc_client(clp, timeparms, RPC_AUTH_UNIX);
if (error < 0)
goto error;
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 8fbc100..4e2fe71 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -572,7 +572,7 @@ int nfs41_setup_sequence(struct nfs4_session *session,
task->tk_timeout = 0;
spin_lock(&tbl->slot_tbl_lock);
- if (test_bit(NFS4_SESSION_DRAINING, &session->session_state) &&
+ if (test_bit(NFS4_SLOT_TBL_DRAINING, &tbl->slot_tbl_state) &&
!args->sa_privileged) {
/* The state manager will wait until the slot table is empty */
dprintk("%s session is draining\n", __func__);
diff --git a/fs/nfs/nfs4session.c b/fs/nfs/nfs4session.c
index ebda5f4..c4e225e 100644
--- a/fs/nfs/nfs4session.c
+++ b/fs/nfs/nfs4session.c
@@ -73,7 +73,7 @@ void nfs4_free_slot(struct nfs4_slot_table *tbl, struct nfs4_slot *slot)
tbl->highest_used_slotid = new_max;
else {
tbl->highest_used_slotid = NFS4_NO_SLOT;
- nfs4_session_drain_complete(tbl->session, tbl);
+ nfs4_slot_tbl_drain_complete(tbl);
}
}
dprintk("%s: slotid %u highest_used_slotid %d\n", __func__,
@@ -226,7 +226,7 @@ static bool nfs41_assign_slot(struct rpc_task *task, void *pslot)
struct nfs4_slot *slot = pslot;
struct nfs4_slot_table *tbl = slot->table;
- if (nfs4_session_draining(tbl->session) && !args->sa_privileged)
+ if (nfs4_slot_tbl_draining(tbl) && !args->sa_privileged)
return false;
slot->generation = tbl->generation;
args->sa_slot = slot;
diff --git a/fs/nfs/nfs4session.h b/fs/nfs/nfs4session.h
index 6f3cb39..ff7d9f0 100644
--- a/fs/nfs/nfs4session.h
+++ b/fs/nfs/nfs4session.h
@@ -25,6 +25,10 @@ struct nfs4_slot {
};
/* Sessions */
+enum nfs4_slot_tbl_state {
+ NFS4_SLOT_TBL_DRAINING,
+};
+
#define SLOT_TABLE_SZ DIV_ROUND_UP(NFS4_MAX_SLOT_TABLE, 8*sizeof(long))
struct nfs4_slot_table {
struct nfs4_session *session; /* Parent session */
@@ -43,6 +47,7 @@ struct nfs4_slot_table {
unsigned long generation; /* Generation counter for
target_highest_slotid */
struct completion complete;
+ unsigned long slot_tbl_state;
};
/*
@@ -68,7 +73,6 @@ struct nfs4_session {
enum nfs4_session_state {
NFS4_SESSION_INITING,
- NFS4_SESSION_DRAINING,
};
#if defined(CONFIG_NFS_V4_1)
@@ -88,12 +92,11 @@ extern void nfs4_destroy_session(struct nfs4_session *session);
extern int nfs4_init_session(struct nfs_server *server);
extern int nfs4_init_ds_session(struct nfs_client *, unsigned long);
-extern void nfs4_session_drain_complete(struct nfs4_session *session,
- struct nfs4_slot_table *tbl);
+extern void nfs4_slot_tbl_drain_complete(struct nfs4_slot_table *tbl);
-static inline bool nfs4_session_draining(struct nfs4_session *session)
+static inline bool nfs4_slot_tbl_draining(struct nfs4_slot_table *tbl)
{
- return !!test_bit(NFS4_SESSION_DRAINING, &session->session_state);
+ return !!test_bit(NFS4_SLOT_TBL_DRAINING, &tbl->slot_tbl_state);
}
bool nfs41_wake_and_assign_slot(struct nfs4_slot_table *tbl,
diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index 300d17d..1fab140 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -241,7 +241,7 @@ static void nfs4_end_drain_session(struct nfs_client *clp)
if (ses == NULL)
return;
tbl = &ses->fc_slot_table;
- if (test_and_clear_bit(NFS4_SESSION_DRAINING, &ses->session_state)) {
+ if (test_and_clear_bit(NFS4_SLOT_TBL_DRAINING, &tbl->slot_tbl_state)) {
spin_lock(&tbl->slot_tbl_lock);
nfs41_wake_slot_table(tbl);
spin_unlock(&tbl->slot_tbl_lock);
@@ -251,15 +251,15 @@ static void nfs4_end_drain_session(struct nfs_client *clp)
/*
* Signal state manager thread if session fore channel is drained
*/
-void nfs4_session_drain_complete(struct nfs4_session *session,
- struct nfs4_slot_table *tbl)
+void nfs4_slot_tbl_drain_complete(struct nfs4_slot_table *tbl)
{
- if (nfs4_session_draining(session))
+ if (nfs4_slot_tbl_draining(tbl))
complete(&tbl->complete);
}
-static int nfs4_wait_on_slot_tbl(struct nfs4_slot_table *tbl)
+static int nfs4_drain_slot_tbl(struct nfs4_slot_table *tbl)
{
+ set_bit(NFS4_SLOT_TBL_DRAINING, &tbl->slot_tbl_state);
spin_lock(&tbl->slot_tbl_lock);
if (tbl->highest_used_slotid != NFS4_NO_SLOT) {
INIT_COMPLETION(tbl->complete);
@@ -275,13 +275,12 @@ static int nfs4_begin_drain_session(struct nfs_client *clp)
struct nfs4_session *ses = clp->cl_session;
int ret = 0;
- set_bit(NFS4_SESSION_DRAINING, &ses->session_state);
/* back channel */
- ret = nfs4_wait_on_slot_tbl(&ses->bc_slot_table);
+ ret = nfs4_drain_slot_tbl(&ses->bc_slot_table);
if (ret)
return ret;
/* fore channel */
- return nfs4_wait_on_slot_tbl(&ses->fc_slot_table);
+ return nfs4_drain_slot_tbl(&ses->fc_slot_table);
}
static void nfs41_finish_session_reset(struct nfs_client *clp)
diff --git a/fs/nilfs2/inode.c b/fs/nilfs2/inode.c
index 689fb60..bccfec8 100644
--- a/fs/nilfs2/inode.c
+++ b/fs/nilfs2/inode.c
@@ -219,13 +219,32 @@ static int nilfs_writepage(struct page *page, struct writeback_control *wbc)
static int nilfs_set_page_dirty(struct page *page)
{
- int ret = __set_page_dirty_buffers(page);
+ int ret = __set_page_dirty_nobuffers(page);
- if (ret) {
+ if (page_has_buffers(page)) {
struct inode *inode = page->mapping->host;
- unsigned nr_dirty = 1 << (PAGE_SHIFT - inode->i_blkbits);
+ unsigned nr_dirty = 0;
+ struct buffer_head *bh, *head;
- nilfs_set_file_dirty(inode, nr_dirty);
+ /*
+ * This page is locked by callers, and no other thread
+ * concurrently marks its buffers dirty since they are
+ * only dirtied through routines in fs/buffer.c in
+ * which call sites of mark_buffer_dirty are protected
+ * by page lock.
+ */
+ bh = head = page_buffers(page);
+ do {
+ /* Do not mark hole blocks dirty */
+ if (buffer_dirty(bh) || !buffer_mapped(bh))
+ continue;
+
+ set_buffer_dirty(bh);
+ nr_dirty++;
+ } while (bh = bh->b_this_page, bh != head);
+
+ if (nr_dirty)
+ nilfs_set_file_dirty(inode, nr_dirty);
}
return ret;
}
diff --git a/fs/ocfs2/extent_map.c b/fs/ocfs2/extent_map.c
index 1c39efb..2487116 100644
--- a/fs/ocfs2/extent_map.c
+++ b/fs/ocfs2/extent_map.c
@@ -790,7 +790,7 @@ int ocfs2_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
&hole_size, &rec, &is_last);
if (ret) {
mlog_errno(ret);
- goto out;
+ goto out_unlock;
}
if (rec.e_blkno == 0ULL) {
diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index 8a7509f..ff54014 100644
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -2288,7 +2288,7 @@ relock:
ret = ocfs2_inode_lock(inode, NULL, 1);
if (ret < 0) {
mlog_errno(ret);
- goto out_sems;
+ goto out;
}
ocfs2_inode_unlock(inode, 1);
diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c
index 2b2691b..41a6950 100644
--- a/fs/xfs/xfs_aops.c
+++ b/fs/xfs/xfs_aops.c
@@ -725,6 +725,25 @@ xfs_convert_page(
(xfs_off_t)(page->index + 1) << PAGE_CACHE_SHIFT,
i_size_read(inode));
+ /*
+ * If the current map does not span the entire page we are about to try
+ * to write, then give up. The only way we can write a page that spans
+ * multiple mappings in a single writeback iteration is via the
+ * xfs_vm_writepage() function. Data integrity writeback requires the
+ * entire page to be written in a single attempt, otherwise the part of
+ * the page we don't write here doesn't get written as part of the data
+ * integrity sync.
+ *
+ * For normal writeback, we also don't attempt to write partial pages
+ * here as it simply means that write_cache_pages() will see it under
+ * writeback and ignore the page until some point in the future, at
+ * which time this will be the only page in the file that needs
+ * writeback. Hence for more optimal IO patterns, we should always
+ * avoid partial page writeback due to multiple mappings on a page here.
+ */
+ if (!xfs_imap_valid(inode, imap, end_offset))
+ goto fail_unlock_page;
+
len = 1 << inode->i_blkbits;
p_offset = min_t(unsigned long, end_offset & (PAGE_CACHE_SIZE - 1),
PAGE_CACHE_SIZE);
diff --git a/fs/xfs/xfs_attr_leaf.c b/fs/xfs/xfs_attr_leaf.c
index 08d5457..0bce1b3 100644
--- a/fs/xfs/xfs_attr_leaf.c
+++ b/fs/xfs/xfs_attr_leaf.c
@@ -931,20 +931,22 @@ xfs_attr_shortform_list(xfs_attr_list_context_t *context)
*/
int
xfs_attr_shortform_allfit(
- struct xfs_buf *bp,
- struct xfs_inode *dp)
+ struct xfs_buf *bp,
+ struct xfs_inode *dp)
{
- xfs_attr_leafblock_t *leaf;
- xfs_attr_leaf_entry_t *entry;
+ struct xfs_attr_leafblock *leaf;
+ struct xfs_attr_leaf_entry *entry;
xfs_attr_leaf_name_local_t *name_loc;
- int bytes, i;
+ struct xfs_attr3_icleaf_hdr leafhdr;
+ int bytes;
+ int i;
leaf = bp->b_addr;
- ASSERT(leaf->hdr.info.magic == cpu_to_be16(XFS_ATTR_LEAF_MAGIC));
+ xfs_attr3_leaf_hdr_from_disk(&leafhdr, leaf);
+ entry = xfs_attr3_leaf_entryp(leaf);
- entry = &leaf->entries[0];
bytes = sizeof(struct xfs_attr_sf_hdr);
- for (i = 0; i < be16_to_cpu(leaf->hdr.count); entry++, i++) {
+ for (i = 0; i < leafhdr.count; entry++, i++) {
if (entry->flags & XFS_ATTR_INCOMPLETE)
continue; /* don't copy partial entries */
if (!(entry->flags & XFS_ATTR_LOCAL))
@@ -954,15 +956,15 @@ xfs_attr_shortform_allfit(
return(0);
if (be16_to_cpu(name_loc->valuelen) >= XFS_ATTR_SF_ENTSIZE_MAX)
return(0);
- bytes += sizeof(struct xfs_attr_sf_entry)-1
+ bytes += sizeof(struct xfs_attr_sf_entry) - 1
+ name_loc->namelen
+ be16_to_cpu(name_loc->valuelen);
}
if ((dp->i_mount->m_flags & XFS_MOUNT_ATTR2) &&
(dp->i_d.di_format != XFS_DINODE_FMT_BTREE) &&
(bytes == sizeof(struct xfs_attr_sf_hdr)))
- return(-1);
- return(xfs_attr_shortform_bytesfit(dp, bytes));
+ return -1;
+ return xfs_attr_shortform_bytesfit(dp, bytes);
}
/*
@@ -2330,9 +2332,10 @@ xfs_attr3_leaf_lookup_int(
if (!xfs_attr_namesp_match(args->flags, entry->flags))
continue;
args->index = probe;
+ args->valuelen = be32_to_cpu(name_rmt->valuelen);
args->rmtblkno = be32_to_cpu(name_rmt->valueblk);
args->rmtblkcnt = XFS_B_TO_FSB(args->dp->i_mount,
- be32_to_cpu(name_rmt->valuelen));
+ args->valuelen);
return XFS_ERROR(EEXIST);
}
}
diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c
index 82b70bd..0d25542 100644
--- a/fs/xfs/xfs_buf.c
+++ b/fs/xfs/xfs_buf.c
@@ -1649,7 +1649,7 @@ xfs_alloc_buftarg(
{
xfs_buftarg_t *btp;
- btp = kmem_zalloc(sizeof(*btp), KM_SLEEP);
+ btp = kmem_zalloc(sizeof(*btp), KM_SLEEP | KM_NOFS);
btp->bt_mount = mp;
btp->bt_dev = bdev->bd_dev;
diff --git a/fs/xfs/xfs_da_btree.c b/fs/xfs/xfs_da_btree.c
index 9b26a99..0b8b2a1 100644
--- a/fs/xfs/xfs_da_btree.c
+++ b/fs/xfs/xfs_da_btree.c
@@ -270,6 +270,7 @@ xfs_da3_node_read_verify(
break;
return;
case XFS_ATTR_LEAF_MAGIC:
+ case XFS_ATTR3_LEAF_MAGIC:
bp->b_ops = &xfs_attr3_leaf_buf_ops;
bp->b_ops->verify_read(bp);
return;
@@ -2464,7 +2465,8 @@ xfs_buf_map_from_irec(
ASSERT(nirecs >= 1);
if (nirecs > 1) {
- map = kmem_zalloc(nirecs * sizeof(struct xfs_buf_map), KM_SLEEP);
+ map = kmem_zalloc(nirecs * sizeof(struct xfs_buf_map),
+ KM_SLEEP | KM_NOFS);
if (!map)
return ENOMEM;
*mapp = map;
@@ -2520,7 +2522,8 @@ xfs_dabuf_map(
* Optimize the one-block case.
*/
if (nfsb != 1)
- irecs = kmem_zalloc(sizeof(irec) * nfsb, KM_SLEEP);
+ irecs = kmem_zalloc(sizeof(irec) * nfsb,
+ KM_SLEEP | KM_NOFS);
nirecs = nfsb;
error = xfs_bmapi_read(dp, (xfs_fileoff_t)bno, nfsb, irecs,
diff --git a/fs/xfs/xfs_dir2_leaf.c b/fs/xfs/xfs_dir2_leaf.c
index 721ba2f..da71a18 100644
--- a/fs/xfs/xfs_dir2_leaf.c
+++ b/fs/xfs/xfs_dir2_leaf.c
@@ -1336,7 +1336,7 @@ xfs_dir2_leaf_getdents(
mp->m_sb.sb_blocksize);
map_info = kmem_zalloc(offsetof(struct xfs_dir2_leaf_map_info, map) +
(length * sizeof(struct xfs_bmbt_irec)),
- KM_SLEEP);
+ KM_SLEEP | KM_NOFS);
map_info->map_size = length;
/*
diff --git a/fs/xfs/xfs_extfree_item.c b/fs/xfs/xfs_extfree_item.c
index c0f3750..452920a 100644
--- a/fs/xfs/xfs_extfree_item.c
+++ b/fs/xfs/xfs_extfree_item.c
@@ -305,11 +305,12 @@ xfs_efi_release(xfs_efi_log_item_t *efip,
{
ASSERT(atomic_read(&efip->efi_next_extent) >= nextents);
if (atomic_sub_and_test(nextents, &efip->efi_next_extent)) {
- __xfs_efi_release(efip);
-
/* recovery needs us to drop the EFI reference, too */
if (test_bit(XFS_EFI_RECOVERED, &efip->efi_flags))
__xfs_efi_release(efip);
+
+ __xfs_efi_release(efip);
+ /* efip may now have been freed, do not reference it again. */
}
}
diff --git a/fs/xfs/xfs_log_cil.c b/fs/xfs/xfs_log_cil.c
index e3d0b85..d0833b5 100644
--- a/fs/xfs/xfs_log_cil.c
+++ b/fs/xfs/xfs_log_cil.c
@@ -139,7 +139,7 @@ xlog_cil_prepare_log_vecs(
new_lv = kmem_zalloc(sizeof(*new_lv) +
niovecs * sizeof(struct xfs_log_iovec),
- KM_SLEEP);
+ KM_SLEEP|KM_NOFS);
/* The allocated iovec region lies beyond the log vector. */
new_lv->lv_iovecp = (struct xfs_log_iovec *)&new_lv[1];
diff --git a/fs/xfs/xfs_vnodeops.c b/fs/xfs/xfs_vnodeops.c
index 1501f4f..0176bb2 100644
--- a/fs/xfs/xfs_vnodeops.c
+++ b/fs/xfs/xfs_vnodeops.c
@@ -1453,7 +1453,7 @@ xfs_free_file_space(
xfs_mount_t *mp;
int nimap;
uint resblks;
- uint rounding;
+ xfs_off_t rounding;
int rt;
xfs_fileoff_t startoffset_fsb;
xfs_trans_t *tp;
@@ -1482,7 +1482,7 @@ xfs_free_file_space(
inode_dio_wait(VFS_I(ip));
}
- rounding = max_t(uint, 1 << mp->m_sb.sb_blocklog, PAGE_CACHE_SIZE);
+ rounding = max_t(xfs_off_t, 1 << mp->m_sb.sb_blocklog, PAGE_CACHE_SIZE);
ioffset = offset & ~(rounding - 1);
error = -filemap_write_and_wait_range(VFS_I(ip)->i_mapping,
ioffset, -1);
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