[PATCH] ufs: ufs_trunc_indirect: infinite cycle

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>

1 files changed, 0 insertions, 12 deletions

diff --git a/fs/ufs/util.c b/fs/ufs/util.c
index 59acc8f073ac..72f91cc84bfe 100644
--- a/fs/ufs/util.c
+++ b/fs/ufs/util.c
@@ -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;