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authorAl Viro <viro@zeniv.linux.org.uk>2015-06-18 22:47:17 +0300
committerAl Viro <viro@zeniv.linux.org.uk>2015-07-07 00:39:41 +0300
commit42432739b5902f72011f701f5cd5b4227ebe991c (patch)
tree885f27b11eb8bf25056a50d15b5fd26c23be2273 /fs/ufs
parentef3a315d4ca179fd0b56597e695cd262a8b559b7 (diff)
downloadlinux-42432739b5902f72011f701f5cd5b4227ebe991c.tar.xz
__ufs_trunc_blocks(): turn the part after switch into a loop
... and turn the switch into if (), since all cases with depth != 1 have just become identical. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/ufs')
-rw-r--r--fs/ufs/inode.c35
1 files changed, 10 insertions, 25 deletions
diff --git a/fs/ufs/inode.c b/fs/ufs/inode.c
index 1427d277a690..285eacd02d60 100644
--- a/fs/ufs/inode.c
+++ b/fs/ufs/inode.c
@@ -1222,6 +1222,7 @@ static void __ufs_truncate_blocks(struct inode *inode)
unsigned offsets[4];
int depth = ufs_block_to_path(inode, DIRECT_BLOCK, offsets);
int depth2;
+ unsigned i;
if (!depth)
return;
@@ -1232,33 +1233,17 @@ static void __ufs_truncate_blocks(struct inode *inode)
break;
mutex_lock(&ufsi->truncate_mutex);
- switch (depth) {
- case 1:
+ if (depth == 1) {
ufs_trunc_direct(inode);
- goto l1;
- case 2:
- ufs_trunc_branch(inode, offsets + 1, depth2, 1,
- ufs_get_direct_data_ptr(uspi, ufsi, UFS_IND_BLOCK));
- goto l2;
- case 3:
- ufs_trunc_branch(inode, offsets + 1, depth2, 2,
- ufs_get_direct_data_ptr(uspi, ufsi, UFS_DIND_BLOCK));
- goto l3;
- case 4:
- ufs_trunc_branch(inode, offsets + 1, depth2, 3,
- ufs_get_direct_data_ptr(uspi, ufsi, UFS_TIND_BLOCK));
- goto l4;
+ offsets[0] = UFS_IND_BLOCK;
+ } else {
+ ufs_trunc_branch(inode, offsets + 1, depth2, depth - 1,
+ ufs_get_direct_data_ptr(uspi, ufsi, offsets[0]++));
+ }
+ for (i = offsets[0]; i <= UFS_TIND_BLOCK; i++) {
+ ufs_trunc_branch(inode, NULL, 0, i - UFS_IND_BLOCK + 1,
+ ufs_get_direct_data_ptr(uspi, ufsi, i));
}
-l1:
- ufs_trunc_branch(inode, NULL, 0, 1,
- ufs_get_direct_data_ptr(uspi, ufsi, UFS_IND_BLOCK));
-l2:
- ufs_trunc_branch(inode, NULL, 0, 2,
- ufs_get_direct_data_ptr(uspi, ufsi, UFS_DIND_BLOCK));
-l3:
- ufs_trunc_branch(inode, NULL, 0, 3,
- ufs_get_direct_data_ptr(uspi, ufsi, UFS_TIND_BLOCK));
-l4:
ufsi->i_lastfrag = DIRECT_FRAGMENT;
mutex_unlock(&ufsi->truncate_mutex);
}