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-rw-r--r--fs/ext4/ext4.h1
-rw-r--r--fs/ext4/extents.c3
-rw-r--r--fs/ext4/mballoc.c21
3 files changed, 20 insertions, 5 deletions
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 635135e..58dede7 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -581,6 +581,7 @@ enum {
#define EXT4_FREE_BLOCKS_NO_QUOT_UPDATE 0x0008
#define EXT4_FREE_BLOCKS_NOFREE_FIRST_CLUSTER 0x0010
#define EXT4_FREE_BLOCKS_NOFREE_LAST_CLUSTER 0x0020
+#define EXT4_FREE_BLOCKS_RESERVE 0x0040
/*
* ioctl commands
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 0183887..62b21cc 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -1793,7 +1793,8 @@ static void ext4_ext_try_to_merge_up(handle_t *handle,
brelse(path[1].p_bh);
ext4_free_blocks(handle, inode, NULL, blk, 1,
- EXT4_FREE_BLOCKS_METADATA | EXT4_FREE_BLOCKS_FORGET);
+ EXT4_FREE_BLOCKS_METADATA | EXT4_FREE_BLOCKS_FORGET |
+ EXT4_FREE_BLOCKS_RESERVE);
}
/*
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index 4bbbf13b..aa7d058 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -4585,6 +4585,7 @@ void ext4_free_blocks(handle_t *handle, struct inode *inode,
struct buffer_head *gd_bh;
ext4_group_t block_group;
struct ext4_sb_info *sbi;
+ struct ext4_inode_info *ei = EXT4_I(inode);
struct ext4_buddy e4b;
unsigned int count_clusters;
int err = 0;
@@ -4784,7 +4785,6 @@ do_more:
ext4_block_bitmap_csum_set(sb, block_group, gdp, bitmap_bh);
ext4_group_desc_csum_set(sb, block_group, gdp);
ext4_unlock_group(sb, block_group);
- percpu_counter_add(&sbi->s_freeclusters_counter, count_clusters);
if (sbi->s_log_groups_per_flex) {
ext4_group_t flex_group = ext4_flex_group(sbi, block_group);
@@ -4792,10 +4792,23 @@ do_more:
&sbi->s_flex_groups[flex_group].free_clusters);
}
- ext4_mb_unload_buddy(&e4b);
-
- if (!(flags & EXT4_FREE_BLOCKS_NO_QUOT_UPDATE))
+ if (flags & EXT4_FREE_BLOCKS_RESERVE && ei->i_reserved_data_blocks) {
+ percpu_counter_add(&sbi->s_dirtyclusters_counter,
+ count_clusters);
+ spin_lock(&ei->i_block_reservation_lock);
+ if (flags & EXT4_FREE_BLOCKS_METADATA)
+ ei->i_reserved_meta_blocks += count_clusters;
+ else
+ ei->i_reserved_data_blocks += count_clusters;
+ spin_unlock(&ei->i_block_reservation_lock);
+ if (!(flags & EXT4_FREE_BLOCKS_NO_QUOT_UPDATE))
+ dquot_reclaim_block(inode,
+ EXT4_C2B(sbi, count_clusters));
+ } else if (!(flags & EXT4_FREE_BLOCKS_NO_QUOT_UPDATE))
dquot_free_block(inode, EXT4_C2B(sbi, count_clusters));
+ percpu_counter_add(&sbi->s_freeclusters_counter, count_clusters);
+
+ ext4_mb_unload_buddy(&e4b);
/* We dirtied the bitmap block */
BUFFER_TRACE(bitmap_bh, "dirtied bitmap block");
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