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authorJan Kara <jack@suse.cz>2009-06-17 16:26:24 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-06-18 13:03:45 -0700
commitef43618a47179b41e7203a624f2c7445e7da488c (patch)
tree64d42f459e5086768e57d8e8e9bec8304b17c150 /fs
parent6f3f1cb21f08fbf757bbbbb0709ee515a7a7c6ad (diff)
downloadlinux-ef43618a47179b41e7203a624f2c7445e7da488c.tar.gz
ext3: make sure inode is deleted from orphan list after truncate
As Ted pointed out, it can happen that ext3_truncate() returns without removing inode from orphan list. This way we could in some rare cases (like when we get ENOMEM from an allocation in ext3_truncate called because of failed ext3_write_begin) leave the inode on orphan list and that triggers assertion failure on umount. So make ext3_truncate() always remove inode from in-memory orphan list. Cc: Theodore Ts'o <tytso@mit.edu> Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs')
-rw-r--r--fs/ext3/inode.c20
1 files changed, 11 insertions, 9 deletions
diff --git a/fs/ext3/inode.c b/fs/ext3/inode.c
index 253c2cdc8d0..05dea8132fc 100644
--- a/fs/ext3/inode.c
+++ b/fs/ext3/inode.c
@@ -2374,7 +2374,7 @@ void ext3_truncate(struct inode *inode)
struct page *page;
if (!ext3_can_truncate(inode))
- return;
+ goto out_notrans;
if (inode->i_size == 0 && ext3_should_writeback_data(inode))
ei->i_state |= EXT3_STATE_FLUSH_ON_CLOSE;
@@ -2390,7 +2390,7 @@ void ext3_truncate(struct inode *inode)
page = grab_cache_page(mapping,
inode->i_size >> PAGE_CACHE_SHIFT);
if (!page)
- return;
+ goto out_notrans;
}
handle = start_transaction(inode);
@@ -2401,7 +2401,7 @@ void ext3_truncate(struct inode *inode)
unlock_page(page);
page_cache_release(page);
}
- return; /* AKPM: return what? */
+ goto out_notrans;
}
last_block = (inode->i_size + blocksize-1)
@@ -2525,6 +2525,14 @@ out_stop:
ext3_orphan_del(handle, inode);
ext3_journal_stop(handle);
+ return;
+out_notrans:
+ /*
+ * Delete the inode from orphan list so that it doesn't stay there
+ * forever and trigger assertion on umount.
+ */
+ if (inode->i_nlink)
+ ext3_orphan_del(NULL, inode);
}
static ext3_fsblk_t ext3_get_inode_block(struct super_block *sb,
@@ -3122,12 +3130,6 @@ int ext3_setattr(struct dentry *dentry, struct iattr *attr)
rc = inode_setattr(inode, attr);
- /* If inode_setattr's call to ext3_truncate failed to get a
- * transaction handle at all, we need to clean up the in-core
- * orphan list manually. */
- if (inode->i_nlink)
- ext3_orphan_del(NULL, inode);
-
if (!rc && (ia_valid & ATTR_MODE))
rc = ext3_acl_chmod(inode);