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[PATCH] ufs: ufs_trunc_indirect: infinite cycle

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Currently, ufs write support have two sets of problems: work with files and
work with directories.

This series of patches should solve the first problem.

This patch is similar to http://lkml.org/lkml/2006/1/17/61 this patch
complements it.

The situation the same: in ufs_trunc_(not direct), we read block, check if
count of links to it is equal to one, if so we finish cycle, if not
continue.  Because of "count of links" always >=2 this operation cause
infinite cycle and hang up the kernel.

Signed-off-by: Evgeniy Dushistov <dushistov@mail.ru>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Evgeniy Dushistov
2006-06-25 05:47:18 -07:00
committed by Linus Torvalds
parent a9adb8dbcd
commit 2061df0f89
3 changed files with 21 additions and 47 deletions
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12
fs/ufs/util.c
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@@ -139,18 +139,6 @@ void ubh_wait_on_buffer (struct ufs_buffer_head * ubh)
wait_on_buffer (ubh->bh[i]);
}
unsigned ubh_max_bcount (struct ufs_buffer_head * ubh)
{
unsigned i;
unsigned max = 0;
if (!ubh)
return 0;
for ( i = 0; i < ubh->count; i++ )
if ( atomic_read(&ubh->bh[i]->b_count) > max )
max = atomic_read(&ubh->bh[i]->b_count);
return max;
}
void ubh_bforget (struct ufs_buffer_head * ubh)
{
unsigned i;