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| author | Jan Kara <jack@suse.cz> | 2019-11-06 16:39:26 +0100 |
|---|---|---|
| committer | Jan Kara <jack@suse.cz> | 2019-11-07 12:35:22 +0100 |
| commit | cf4eb321b3ad63248069a8038df126fcf9ed9100 (patch) | |
| tree | f2177b2e1ac06aeff43b3f29a12bcbe105906816 /fs/ext2 | |
| parent | 90f3741c2b567d3f16c13d574dbd5d42ed076b2e (diff) | |
| download | linux-cf4eb321b3ad63248069a8038df126fcf9ed9100.tar.bz2 | |
ext2: Simplify initialization in ext2_try_to_allocate()
Somewhat simplify the logic initializing search start and end in
ext2_try_to_allocate(). No functional change.
Signed-off-by: Jan Kara <jack@suse.cz>
Diffstat (limited to 'fs/ext2')
| -rw-r--r-- | fs/ext2/balloc.c | 22 |
1 files changed, 5 insertions, 17 deletions
diff --git a/fs/ext2/balloc.c b/fs/ext2/balloc.c index 994a1fd18e93..b7a4d74dfde7 100644 --- a/fs/ext2/balloc.c +++ b/fs/ext2/balloc.c @@ -671,29 +671,17 @@ ext2_try_to_allocate(struct super_block *sb, int group, ext2_grpblk_t start, end; unsigned long num = 0; + start = 0; + end = group_last_block - group_first_block + 1; /* we do allocation within the reservation window if we have a window */ if (my_rsv) { if (my_rsv->_rsv_start >= group_first_block) start = my_rsv->_rsv_start - group_first_block; - else - /* reservation window cross group boundary */ - start = 0; - end = my_rsv->_rsv_end - group_first_block + 1; - if (end > group_last_block - group_first_block + 1) - /* reservation window crosses group boundary */ - end = group_last_block - group_first_block + 1; - if ((start <= grp_goal) && (grp_goal < end)) - start = grp_goal; - else + if (my_rsv->_rsv_end < group_last_block) + end = my_rsv->_rsv_end - group_first_block + 1; + if (grp_goal < start || grp_goal >= end) grp_goal = -1; - } else { - if (grp_goal > 0) - start = grp_goal; - else - start = 0; - end = group_last_block - group_first_block + 1; } - BUG_ON(start > EXT2_BLOCKS_PER_GROUP(sb)); repeat: |