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author | Linus Torvalds <torvalds@linux-foundation.org> | 2016-10-04 13:42:13 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-10-04 13:42:13 -0700 |
commit | 5fdf4939dc66307daf30a3d5355a2bfb9d207676 (patch) | |
tree | d446edd663f287dd869a228e1af43c67d0caab4e | |
parent | c35bcfd8e4e11bdff2ffab823a13a59968426b15 (diff) | |
parent | 332f51d7db13ffb7fcbe2407ed5b3667bc3750a7 (diff) | |
download | op-kernel-dev-5fdf4939dc66307daf30a3d5355a2bfb9d207676.zip op-kernel-dev-5fdf4939dc66307daf30a3d5355a2bfb9d207676.tar.gz |
Merge tag 'gfs2-4.8.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2
Pull gfs2 updates from Bob Peterson:
"We've only got six GFS2 patches for this merge window. In patch
order:
- Fabian Frederick submitted a nice cleanup that uses the BIT macro
rather than bit shifting.
- Andreas Gruenbacher contributed a patch that fixes a long-standing
annoyance whereby GFS2 warned about dirty pages.
- Andreas also fixed a problem with the recent extended attribute
readahead feature.
- Chao Yu contributed a patch that checks the return code from
function register_shrinker and reacts accordingly. Previously, it
was not checked.
- Andreas Gruenbacher also fixed a problem whereby incore file
timestamps were forgotten if the file was invalidated. This merely
moves the assignment inside the inode glock where it belongs.
- Andreas also fixed a problem where incore timestamps were not
initialized"
* tag 'gfs2-4.8.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2:
gfs2: Initialize atime of I_NEW inodes
gfs2: Update file times after grabbing glock
gfs2: fix to detect failure of register_shrinker
gfs2: Fix extended attribute readahead optimization
gfs2: Remove dirty buffer warning from gfs2_releasepage
GFS2: use BIT() macro
-rw-r--r-- | fs/gfs2/aops.c | 19 | ||||
-rw-r--r-- | fs/gfs2/bmap.c | 6 | ||||
-rw-r--r-- | fs/gfs2/dir.c | 20 | ||||
-rw-r--r-- | fs/gfs2/file.c | 6 | ||||
-rw-r--r-- | fs/gfs2/glock.c | 10 | ||||
-rw-r--r-- | fs/gfs2/inode.c | 4 | ||||
-rw-r--r-- | fs/gfs2/inode.h | 2 | ||||
-rw-r--r-- | fs/gfs2/main.c | 4 | ||||
-rw-r--r-- | fs/gfs2/meta_io.c | 35 | ||||
-rw-r--r-- | fs/gfs2/ops_fstype.c | 8 | ||||
-rw-r--r-- | fs/gfs2/quota.c | 4 | ||||
-rw-r--r-- | fs/gfs2/super.c | 2 |
12 files changed, 71 insertions, 49 deletions
diff --git a/fs/gfs2/aops.c b/fs/gfs2/aops.c index 82df368..5a6f52e 100644 --- a/fs/gfs2/aops.c +++ b/fs/gfs2/aops.c @@ -187,7 +187,7 @@ static int __gfs2_jdata_writepage(struct page *page, struct writeback_control *w ClearPageChecked(page); if (!page_has_buffers(page)) { create_empty_buffers(page, inode->i_sb->s_blocksize, - (1 << BH_Dirty)|(1 << BH_Uptodate)); + BIT(BH_Dirty)|BIT(BH_Uptodate)); } gfs2_page_add_databufs(ip, page, 0, sdp->sd_vfs->s_blocksize-1); } @@ -1147,6 +1147,16 @@ int gfs2_releasepage(struct page *page, gfp_t gfp_mask) if (!page_has_buffers(page)) return 0; + /* + * From xfs_vm_releasepage: mm accommodates an old ext3 case where + * clean pages might not have had the dirty bit cleared. Thus, it can + * send actual dirty pages to ->releasepage() via shrink_active_list(). + * + * As a workaround, we skip pages that contain dirty buffers below. + * Once ->releasepage isn't called on dirty pages anymore, we can warn + * on dirty buffers like we used to here again. + */ + gfs2_log_lock(sdp); spin_lock(&sdp->sd_ail_lock); head = bh = page_buffers(page); @@ -1156,8 +1166,8 @@ int gfs2_releasepage(struct page *page, gfp_t gfp_mask) bd = bh->b_private; if (bd && bd->bd_tr) goto cannot_release; - if (buffer_pinned(bh) || buffer_dirty(bh)) - goto not_possible; + if (buffer_dirty(bh) || WARN_ON(buffer_pinned(bh))) + goto cannot_release; bh = bh->b_this_page; } while(bh != head); spin_unlock(&sdp->sd_ail_lock); @@ -1180,9 +1190,6 @@ int gfs2_releasepage(struct page *page, gfp_t gfp_mask) return try_to_free_buffers(page); -not_possible: /* Should never happen */ - WARN_ON(buffer_dirty(bh)); - WARN_ON(buffer_pinned(bh)); cannot_release: spin_unlock(&sdp->sd_ail_lock); gfs2_log_unlock(sdp); diff --git a/fs/gfs2/bmap.c b/fs/gfs2/bmap.c index 6e2bec1..645721f 100644 --- a/fs/gfs2/bmap.c +++ b/fs/gfs2/bmap.c @@ -82,8 +82,8 @@ static int gfs2_unstuffer_page(struct gfs2_inode *ip, struct buffer_head *dibh, } if (!page_has_buffers(page)) - create_empty_buffers(page, 1 << inode->i_blkbits, - (1 << BH_Uptodate)); + create_empty_buffers(page, BIT(inode->i_blkbits), + BIT(BH_Uptodate)); bh = page_buffers(page); @@ -690,7 +690,7 @@ int gfs2_extent_map(struct inode *inode, u64 lblock, int *new, u64 *dblock, unsi BUG_ON(!dblock); BUG_ON(!new); - bh.b_size = 1 << (inode->i_blkbits + (create ? 0 : 5)); + bh.b_size = BIT(inode->i_blkbits + (create ? 0 : 5)); ret = gfs2_block_map(inode, lblock, &bh, create); *extlen = bh.b_size >> inode->i_blkbits; *dblock = bh.b_blocknr; diff --git a/fs/gfs2/dir.c b/fs/gfs2/dir.c index fcb59b2..db8fbeb 100644 --- a/fs/gfs2/dir.c +++ b/fs/gfs2/dir.c @@ -351,7 +351,7 @@ static __be64 *gfs2_dir_get_hash_table(struct gfs2_inode *ip) if (hc) return hc; - hsize = 1 << ip->i_depth; + hsize = BIT(ip->i_depth); hsize *= sizeof(__be64); if (hsize != i_size_read(&ip->i_inode)) { gfs2_consist_inode(ip); @@ -819,8 +819,8 @@ static struct gfs2_dirent *gfs2_dirent_search(struct inode *inode, if (ip->i_diskflags & GFS2_DIF_EXHASH) { struct gfs2_leaf *leaf; - unsigned hsize = 1 << ip->i_depth; - unsigned index; + unsigned int hsize = BIT(ip->i_depth); + unsigned int index; u64 ln; if (hsize * sizeof(u64) != i_size_read(inode)) { gfs2_consist_inode(ip); @@ -932,7 +932,7 @@ static int dir_make_exhash(struct inode *inode) return -ENOSPC; bn = bh->b_blocknr; - gfs2_assert(sdp, dip->i_entries < (1 << 16)); + gfs2_assert(sdp, dip->i_entries < BIT(16)); leaf->lf_entries = cpu_to_be16(dip->i_entries); /* Copy dirents */ @@ -1041,7 +1041,7 @@ static int dir_split_leaf(struct inode *inode, const struct qstr *name) bn = nbh->b_blocknr; /* Compute the start and len of leaf pointers in the hash table. */ - len = 1 << (dip->i_depth - be16_to_cpu(oleaf->lf_depth)); + len = BIT(dip->i_depth - be16_to_cpu(oleaf->lf_depth)); half_len = len >> 1; if (!half_len) { pr_warn("i_depth %u lf_depth %u index %u\n", @@ -1163,7 +1163,7 @@ static int dir_double_exhash(struct gfs2_inode *dip) int x; int error = 0; - hsize = 1 << dip->i_depth; + hsize = BIT(dip->i_depth); hsize_bytes = hsize * sizeof(__be64); hc = gfs2_dir_get_hash_table(dip); @@ -1539,7 +1539,7 @@ static int dir_e_read(struct inode *inode, struct dir_context *ctx, int error = 0; unsigned depth = 0; - hsize = 1 << dip->i_depth; + hsize = BIT(dip->i_depth); hash = gfs2_dir_offset2hash(ctx->pos); index = hash >> (32 - dip->i_depth); @@ -1558,7 +1558,7 @@ static int dir_e_read(struct inode *inode, struct dir_context *ctx, if (error) break; - len = 1 << (dip->i_depth - depth); + len = BIT(dip->i_depth - depth); index = (index & ~(len - 1)) + len; } @@ -2113,7 +2113,7 @@ int gfs2_dir_exhash_dealloc(struct gfs2_inode *dip) u64 leaf_no; int error = 0, last; - hsize = 1 << dip->i_depth; + hsize = BIT(dip->i_depth); lp = gfs2_dir_get_hash_table(dip); if (IS_ERR(lp)) @@ -2126,7 +2126,7 @@ int gfs2_dir_exhash_dealloc(struct gfs2_inode *dip) if (error) goto out; leaf = (struct gfs2_leaf *)bh->b_data; - len = 1 << (dip->i_depth - be16_to_cpu(leaf->lf_depth)); + len = BIT(dip->i_depth - be16_to_cpu(leaf->lf_depth)); next_index = (index & ~(len - 1)) + len; last = ((next_index >= hsize) ? 1 : 0); diff --git a/fs/gfs2/file.c b/fs/gfs2/file.c index 320e65e..360188f 100644 --- a/fs/gfs2/file.c +++ b/fs/gfs2/file.c @@ -395,9 +395,6 @@ static int gfs2_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf) sb_start_pagefault(inode->i_sb); - /* Update file times before taking page lock */ - file_update_time(vma->vm_file); - ret = gfs2_rsqa_alloc(ip); if (ret) goto out; @@ -409,6 +406,9 @@ static int gfs2_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf) if (ret) goto out_uninit; + /* Update file times before taking page lock */ + file_update_time(vma->vm_file); + set_bit(GLF_DIRTY, &ip->i_gl->gl_flags); set_bit(GIF_SW_PAGED, &ip->i_flags); diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c index 3a90b2b..14cbf60 100644 --- a/fs/gfs2/glock.c +++ b/fs/gfs2/glock.c @@ -69,7 +69,7 @@ static atomic_t lru_count = ATOMIC_INIT(0); static DEFINE_SPINLOCK(lru_lock); #define GFS2_GL_HASH_SHIFT 15 -#define GFS2_GL_HASH_SIZE (1 << GFS2_GL_HASH_SHIFT) +#define GFS2_GL_HASH_SIZE BIT(GFS2_GL_HASH_SHIFT) static struct rhashtable_params ht_parms = { .nelem_hint = GFS2_GL_HASH_SIZE * 3 / 4, @@ -1781,7 +1781,13 @@ int __init gfs2_glock_init(void) return -ENOMEM; } - register_shrinker(&glock_shrinker); + ret = register_shrinker(&glock_shrinker); + if (ret) { + destroy_workqueue(gfs2_delete_workqueue); + destroy_workqueue(glock_workqueue); + rhashtable_destroy(&gl_hash_table); + return ret; + } return 0; } diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c index e4da0ec..fb3a810 100644 --- a/fs/gfs2/inode.c +++ b/fs/gfs2/inode.c @@ -187,6 +187,10 @@ struct inode *gfs2_inode_lookup(struct super_block *sb, unsigned int type, } gfs2_set_iop(inode); + + inode->i_atime.tv_sec = 0; + inode->i_atime.tv_nsec = 0; + unlock_new_inode(inode); } diff --git a/fs/gfs2/inode.h b/fs/gfs2/inode.h index 7710dfd..aace8ce 100644 --- a/fs/gfs2/inode.h +++ b/fs/gfs2/inode.h @@ -85,7 +85,7 @@ static inline int gfs2_check_internal_file_size(struct inode *inode, u64 size = i_size_read(inode); if (size < minsize || size > maxsize) goto err; - if (size & ((1 << inode->i_blkbits) - 1)) + if (size & (BIT(inode->i_blkbits) - 1)) goto err; return 0; err: diff --git a/fs/gfs2/main.c b/fs/gfs2/main.c index 74fd013..67d1fc4 100644 --- a/fs/gfs2/main.c +++ b/fs/gfs2/main.c @@ -145,7 +145,9 @@ static int __init init_gfs2_fs(void) if (!gfs2_qadata_cachep) goto fail; - register_shrinker(&gfs2_qd_shrinker); + error = register_shrinker(&gfs2_qd_shrinker); + if (error) + goto fail; error = register_filesystem(&gfs2_fs_type); if (error) diff --git a/fs/gfs2/meta_io.c b/fs/gfs2/meta_io.c index 950b8be..373639a5 100644 --- a/fs/gfs2/meta_io.c +++ b/fs/gfs2/meta_io.c @@ -216,23 +216,26 @@ static void gfs2_meta_read_endio(struct bio *bio) static void gfs2_submit_bhs(int op, int op_flags, struct buffer_head *bhs[], int num) { - struct buffer_head *bh = bhs[0]; - struct bio *bio; - int i; - - if (!num) - return; - - bio = bio_alloc(GFP_NOIO, num); - bio->bi_iter.bi_sector = bh->b_blocknr * (bh->b_size >> 9); - bio->bi_bdev = bh->b_bdev; - for (i = 0; i < num; i++) { - bh = bhs[i]; - bio_add_page(bio, bh->b_page, bh->b_size, bh_offset(bh)); + while (num > 0) { + struct buffer_head *bh = *bhs; + struct bio *bio; + + bio = bio_alloc(GFP_NOIO, num); + bio->bi_iter.bi_sector = bh->b_blocknr * (bh->b_size >> 9); + bio->bi_bdev = bh->b_bdev; + while (num > 0) { + bh = *bhs; + if (!bio_add_page(bio, bh->b_page, bh->b_size, bh_offset(bh))) { + BUG_ON(bio->bi_iter.bi_size == 0); + break; + } + bhs++; + num--; + } + bio->bi_end_io = gfs2_meta_read_endio; + bio_set_op_attrs(bio, op, op_flags); + submit_bio(bio); } - bio->bi_end_io = gfs2_meta_read_endio; - bio_set_op_attrs(bio, op, op_flags); - submit_bio(bio); } /** diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c index ef1e182..ff72ac6 100644 --- a/fs/gfs2/ops_fstype.c +++ b/fs/gfs2/ops_fstype.c @@ -58,7 +58,7 @@ static void gfs2_tune_init(struct gfs2_tune *gt) gt->gt_quota_scale_num = 1; gt->gt_quota_scale_den = 1; gt->gt_new_files_jdata = 0; - gt->gt_max_readahead = 1 << 18; + gt->gt_max_readahead = BIT(18); gt->gt_complain_secs = 10; } @@ -284,7 +284,7 @@ static int gfs2_read_sb(struct gfs2_sbd *sdp, int silent) sdp->sd_fsb2bb_shift = sdp->sd_sb.sb_bsize_shift - GFS2_BASIC_BLOCK_SHIFT; - sdp->sd_fsb2bb = 1 << sdp->sd_fsb2bb_shift; + sdp->sd_fsb2bb = BIT(sdp->sd_fsb2bb_shift); sdp->sd_diptrs = (sdp->sd_sb.sb_bsize - sizeof(struct gfs2_dinode)) / sizeof(u64); sdp->sd_inptrs = (sdp->sd_sb.sb_bsize - @@ -302,7 +302,7 @@ static int gfs2_read_sb(struct gfs2_sbd *sdp, int silent) /* Compute maximum reservation required to add a entry to a directory */ - hash_blocks = DIV_ROUND_UP(sizeof(u64) * (1 << GFS2_DIR_MAX_DEPTH), + hash_blocks = DIV_ROUND_UP(sizeof(u64) * BIT(GFS2_DIR_MAX_DEPTH), sdp->sd_jbsize); ind_blocks = 0; @@ -1089,7 +1089,7 @@ static int fill_super(struct super_block *sb, struct gfs2_args *args, int silent sdp->sd_sb.sb_bsize_shift = sb->s_blocksize_bits; sdp->sd_fsb2bb_shift = sdp->sd_sb.sb_bsize_shift - GFS2_BASIC_BLOCK_SHIFT; - sdp->sd_fsb2bb = 1 << sdp->sd_fsb2bb_shift; + sdp->sd_fsb2bb = BIT(sdp->sd_fsb2bb_shift); sdp->sd_tune.gt_logd_secs = sdp->sd_args.ar_commit; sdp->sd_tune.gt_quota_quantum = sdp->sd_args.ar_quota_quantum; diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c index 77930ca..8af2dfa 100644 --- a/fs/gfs2/quota.c +++ b/fs/gfs2/quota.c @@ -75,7 +75,7 @@ #include "util.h" #define GFS2_QD_HASH_SHIFT 12 -#define GFS2_QD_HASH_SIZE (1 << GFS2_QD_HASH_SHIFT) +#define GFS2_QD_HASH_SIZE BIT(GFS2_QD_HASH_SHIFT) #define GFS2_QD_HASH_MASK (GFS2_QD_HASH_SIZE - 1) /* Lock order: qd_lock -> bucket lock -> qd->lockref.lock -> lru lock */ @@ -384,7 +384,7 @@ static int bh_get(struct gfs2_quota_data *qd) block = qd->qd_slot / sdp->sd_qc_per_block; offset = qd->qd_slot % sdp->sd_qc_per_block; - bh_map.b_size = 1 << ip->i_inode.i_blkbits; + bh_map.b_size = BIT(ip->i_inode.i_blkbits); error = gfs2_block_map(&ip->i_inode, block, &bh_map, 0); if (error) goto fail; diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c index 3a7e60b..e3ee387 100644 --- a/fs/gfs2/super.c +++ b/fs/gfs2/super.c @@ -359,7 +359,7 @@ int gfs2_jdesc_check(struct gfs2_jdesc *jd) struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode); u64 size = i_size_read(jd->jd_inode); - if (gfs2_check_internal_file_size(jd->jd_inode, 8 << 20, 1 << 30)) + if (gfs2_check_internal_file_size(jd->jd_inode, 8 << 20, BIT(30))) return -EIO; jd->jd_blocks = size >> sdp->sd_sb.sb_bsize_shift; |