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btrfs: use for loop in prealloc_file_extent_cluster

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This function iterates all extents in the extent cluster, make this
intention obvious by using a for loop. No functional chanes.

Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Nikolay Borisov 2020-06-17 12:10:44 +03:00 committed by David Sterba
parent 214e61d07e
commit 4e9d0d0109
1 changed files with 2 additions and 3 deletions
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5
fs/btrfs/relocation.c
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@ -2580,7 +2580,7 @@ int prealloc_file_extent_cluster(struct inode *inode,
u64 end;
u64 offset = BTRFS_I(inode)->index_cnt;
u64 num_bytes;
int nr = 0;
int nr;
int ret = 0;
u64 prealloc_start = cluster->start - offset;
u64 prealloc_end = cluster->end - offset;
@ -2593,7 +2593,7 @@ int prealloc_file_extent_cluster(struct inode *inode,
return ret;
inode_lock(inode);
while (nr < cluster->nr) {
for (nr = 0; nr < cluster->nr; nr++) {
start = cluster->boundary[nr] - offset;
if (nr + 1 < cluster->nr)
end = cluster->boundary[nr + 1] - 1 - offset;
@ -2609,7 +2609,6 @@ int prealloc_file_extent_cluster(struct inode *inode,
unlock_extent(&BTRFS_I(inode)->io_tree, start, end);
if (ret)
break;
nr++;
}
inode_unlock(inode);