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-rw-r--r--fs/ext4/super.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 77492cc12807..4a0887e36d45 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -229,6 +229,16 @@ ext4_sb_bread(struct super_block *sb, sector_t block, int op_flags)
return bh;
}
+void ext4_sb_breadahead_unmovable(struct super_block *sb, sector_t block)
+{
+ struct buffer_head *bh = sb_getblk_gfp(sb, block, 0);
+
+ if (likely(bh)) {
+ ext4_read_bh_lock(bh, REQ_RAHEAD, false);
+ brelse(bh);
+ }
+}
+
static int ext4_verify_csum_type(struct super_block *sb,
struct ext4_super_block *es)
{
@@ -4556,7 +4566,7 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
/* Pre-read the descriptors into the buffer cache */
for (i = 0; i < db_count; i++) {
block = descriptor_loc(sb, logical_sb_block, i);
- sb_breadahead_unmovable(sb, block);
+ ext4_sb_breadahead_unmovable(sb, block);
}
for (i = 0; i < db_count; i++) {