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authorEvgeniy Dushistov <dushistov@mail.ru>2007-01-29 13:19:54 -0800
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-01-30 08:26:45 -0800
commita685e26fff387db350966f88eaad515bf41c4705 (patch)
treeaa32924e5641541df5e178908bf8e88fb9d2f508 /fs/ufs/inode.c
parentff79544754631cf3d237ff47b7d0e7ab2d211fcf (diff)
[PATCH] ufs: alloc metadata null page fix
These series of patches result of UFS1 write support stress testing, like running fsx-linux, untar and build linux kernel etc We pass from ufs::get_block_t to levels below: pointer to the current page, to make possible things like reallocation of blocks on the fly, and we also uses this pointer for indication, what actually we allocate data block or meta data block, but currently we make decision about what we allocate on the wrong level, this may and cause oops if we allocate blocks in some special order. Signed-off-by: Evgeniy Dushistov <dushistov@mail.ru> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/ufs/inode.c')
-rw-r--r--fs/ufs/inode.c14
1 files changed, 9 insertions, 5 deletions
diff --git a/fs/ufs/inode.c b/fs/ufs/inode.c
index 2fbab0aab68..4295ca91cf8 100644
--- a/fs/ufs/inode.c
+++ b/fs/ufs/inode.c
@@ -242,7 +242,8 @@ repeat:
goal = tmp + uspi->s_fpb;
tmp = ufs_new_fragments (inode, p, fragment - blockoff,
goal, required + blockoff,
- err, locked_page);
+ err,
+ phys != NULL ? locked_page : NULL);
}
/*
* We will extend last allocated block
@@ -250,7 +251,7 @@ repeat:
else if (lastblock == block) {
tmp = ufs_new_fragments(inode, p, fragment - (blockoff - lastblockoff),
fs32_to_cpu(sb, *p), required + (blockoff - lastblockoff),
- err, locked_page);
+ err, phys != NULL ? locked_page : NULL);
} else /* (lastblock > block) */ {
/*
* We will allocate new block before last allocated block
@@ -261,7 +262,8 @@ repeat:
goal = tmp + uspi->s_fpb;
}
tmp = ufs_new_fragments(inode, p, fragment - blockoff,
- goal, uspi->s_fpb, err, locked_page);
+ goal, uspi->s_fpb, err,
+ phys != NULL ? locked_page : NULL);
}
if (!tmp) {
if ((!blockoff && *p) ||
@@ -438,9 +440,11 @@ int ufs_getfrag_block(struct inode *inode, sector_t fragment, struct buffer_head
* it much more readable:
*/
#define GET_INODE_DATABLOCK(x) \
- ufs_inode_getfrag(inode, x, fragment, 1, &err, &phys, &new, bh_result->b_page)
+ ufs_inode_getfrag(inode, x, fragment, 1, &err, &phys, &new,\
+ bh_result->b_page)
#define GET_INODE_PTR(x) \
- ufs_inode_getfrag(inode, x, fragment, uspi->s_fpb, &err, NULL, NULL, NULL)
+ ufs_inode_getfrag(inode, x, fragment, uspi->s_fpb, &err, NULL, NULL,\
+ bh_result->b_page)
#define GET_INDIRECT_DATABLOCK(x) \
ufs_inode_getblock(inode, bh, x, fragment, \
&err, &phys, &new, bh_result->b_page)