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ext4: call ext4_mb_mark_context in ext4_free_blocks_simple

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call ext4_mb_mark_context in ext4_free_blocks_simple to:
1. remove repeat code
2. pair update of free_clusters in ext4_mb_new_blocks_simple.
3. add missing ext4_lock_group/ext4_unlock_group protection.

Signed-off-by: Kemeng Shi <shikemeng@huaweicloud.com>
Reviewed-by: "Ritesh Harjani (IBM)" <ritesh.list@gmail.com>
Link: https://lore.kernel.org/r/20230928160407.142069-4-shikemeng@huaweicloud.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
This commit is contained in:
Kemeng Shi 2023-09-29 00:03:58 +08:00 committed by Theodore Ts'o
parent f9e2d95a45
commit 26d0f87b9f
1 changed files with 1 additions and 32 deletions
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33
fs/ext4/mballoc.c
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@ -6358,43 +6358,12 @@ ext4_mb_free_metadata(handle_t *handle, struct ext4_buddy *e4b,
static void ext4_free_blocks_simple(struct inode *inode, ext4_fsblk_t block,
unsigned long count)
{
struct buffer_head *bitmap_bh;
struct super_block *sb = inode->i_sb;
struct ext4_group_desc *gdp;
struct buffer_head *gdp_bh;
ext4_group_t group;
ext4_grpblk_t blkoff;
int already_freed = 0, err, i;
ext4_get_group_no_and_offset(sb, block, &group, &blkoff);
bitmap_bh = ext4_read_block_bitmap(sb, group);
if (IS_ERR(bitmap_bh)) {
pr_warn("Failed to read block bitmap\n");
return;
}
gdp = ext4_get_group_desc(sb, group, &gdp_bh);
if (!gdp)
goto err_out;
for (i = 0; i < count; i++) {
if (!mb_test_bit(blkoff + i, bitmap_bh->b_data))
already_freed++;
}
mb_clear_bits(bitmap_bh->b_data, blkoff, count);
err = ext4_handle_dirty_metadata(NULL, NULL, bitmap_bh);
if (err)
goto err_out;
ext4_free_group_clusters_set(
sb, gdp, ext4_free_group_clusters(sb, gdp) +
count - already_freed);
ext4_block_bitmap_csum_set(sb, gdp, bitmap_bh);
ext4_group_desc_csum_set(sb, group, gdp);
ext4_handle_dirty_metadata(NULL, NULL, gdp_bh);
sync_dirty_buffer(bitmap_bh);
sync_dirty_buffer(gdp_bh);
err_out:
brelse(bitmap_bh);
ext4_mb_mark_context(sb, false, group, blkoff, count);
}
/**