From a7967f055a9438941268d725b268141c57e32a05 Mon Sep 17 00:00:00 2001 From: Lukas Czerner Date: Wed, 21 Mar 2012 21:26:22 -0400 Subject: ext4: always set then trimmed blocks count into len Currently if the range to trim is too small, for example on 1K fs the request to trim the first block, then the 'range->len' is not set reporting wrong number of discarded block to the caller. Fix this by always setting the 'range->len' before we return. Note that when there is a failure (-EINVAL) caller can not depend on 'range->len' being set properly. Signed-off-by: Lukas Czerner Reviewed-by: Jan Kara Signed-off-by: "Theodore Ts'o" --- fs/ext4/mballoc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'fs/ext4') diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c index c8b6a88..99ab428 100644 --- a/fs/ext4/mballoc.c +++ b/fs/ext4/mballoc.c @@ -5035,11 +5035,11 @@ int ext4_trim_fs(struct super_block *sb, struct fstrim_range *range) */ first_cluster = 0; } - range->len = trimmed * sb->s_blocksize; if (!ret) atomic_set(&EXT4_SB(sb)->s_last_trim_minblks, minlen); out: + range->len = trimmed * sb->s_blocksize; return ret; } -- cgit v1.1