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authorNick Piggin <npiggin@suse.de>2009-06-02 12:07:47 +0200
committerAl Viro <viro@zeniv.linux.org.uk>2009-06-11 21:36:10 -0400
commit545b9fd3d737afc0bb5203b1e79194a471605acd (patch)
tree9b9a39b55c3145a225c5256ff2be3b07a1ee43bb
parent8688b8635266cf98f00c6b0350ea2dbe7c42c321 (diff)
downloadop-kernel-dev-545b9fd3d737afc0bb5203b1e79194a471605acd.zip
op-kernel-dev-545b9fd3d737afc0bb5203b1e79194a471605acd.tar.gz
fs: remove incorrect I_NEW warnings
Some filesystems can call in to sync an inode that is still in the I_NEW state (eg. ext family, when mounted with -osync). This is OK because the filesystem has sole access to the new inode, so it can modify i_state without races (because no other thread should be modifying it, by definition of I_NEW). Ie. a false positive, so remove the warnings. The races are described here 7ef0d7377cb287e08f3ae94cebc919448e1f5dff, which is also where the warnings were introduced. Reported-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: Nick Piggin <npiggin@suse.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
-rw-r--r--fs/fs-writeback.c2
1 files changed, 0 insertions, 2 deletions
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index e0fb2e7..efcedb6 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -289,7 +289,6 @@ __sync_single_inode(struct inode *inode, struct writeback_control *wbc)
int ret;
BUG_ON(inode->i_state & I_SYNC);
- WARN_ON(inode->i_state & I_NEW);
/* Set I_SYNC, reset I_DIRTY */
dirty = inode->i_state & I_DIRTY;
@@ -314,7 +313,6 @@ __sync_single_inode(struct inode *inode, struct writeback_control *wbc)
}
spin_lock(&inode_lock);
- WARN_ON(inode->i_state & I_NEW);
inode->i_state &= ~I_SYNC;
if (!(inode->i_state & I_FREEING)) {
if (!(inode->i_state & I_DIRTY) &&
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