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ext2: code cleanup for ext2_try_to_allocate() 

Code cleanup by removing duplicated code.

Link: https://lore.kernel.org/r/20191104114036.9893-4-cgxu519@mykernel.net
Signed-off-by: Chengguang Xu <cgxu519@mykernel.net>
Signed-off-by: Jan Kara <jack@suse.cz>
This commit is contained in:
Chengguang Xu 2019-11-04 19:40:35 +08:00 committed by Jan Kara
parent ac3820f822
commit 44dd616133
1 changed files with 10 additions and 19 deletions
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29
fs/ext2/balloc.c
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@ -698,29 +698,20 @@ ext2_try_to_allocate(struct super_block *sb, int group,
;
}
}
start = grp_goal;
repeat:
if (ext2_set_bit_atomic(sb_bgl_lock(EXT2_SB(sb), group), grp_goal,
bitmap_bh->b_data)) {
/*
* The block was allocated by another thread, or it was
* allocated and then freed by another thread
*/
start++;
grp_goal++;
if (start >= end)
goto fail_access;
goto repeat;
}
num++;
grp_goal++;
while (num < *count && grp_goal < end
&& !ext2_set_bit_atomic(sb_bgl_lock(EXT2_SB(sb), group),
for (; num < *count && grp_goal < end; grp_goal++) {
if (ext2_set_bit_atomic(sb_bgl_lock(EXT2_SB(sb), group),
grp_goal, bitmap_bh->b_data)) {
if (num == 0)
continue;
break;
}
num++;
grp_goal++;
}
if (num == 0)
goto fail_access;
*count = num;
return grp_goal - num;
fail_access: