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authorMiklos Szeredi <mszeredi@suse.cz>2008-06-08 10:56:53 +0200
committerGreg Kroah-Hartman <gregkh@suse.de>2008-06-16 13:19:50 -0700
commit2583783370aa26010ca861111b21700a9655d238 (patch)
tree1acc5314e80331f784f4e1454c2fad26d7a394dc /fs
parent01891b7ca1373846a8ef2dfedce2bfe21369b81b (diff)
ecryptfs: add missing lock around notify_change
upstream commit: 9c3580aa52195699065bc2d7242b1c7e3e6903fa Callers of notify_change() need to hold i_mutex. Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Cc: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Diffstat (limited to 'fs')
-rw-r--r--fs/ecryptfs/inode.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c
index e23861152101..af1b8c599fa5 100644
--- a/fs/ecryptfs/inode.c
+++ b/fs/ecryptfs/inode.c
@@ -908,7 +908,9 @@ static int ecryptfs_setattr(struct dentry *dentry, struct iattr *ia)
if (ia->ia_valid & (ATTR_KILL_SUID | ATTR_KILL_SGID))
ia->ia_valid &= ~ATTR_MODE;
+ mutex_lock(&lower_dentry->d_inode->i_mutex);
rc = notify_change(lower_dentry, ia);
+ mutex_unlock(&lower_dentry->d_inode->i_mutex);
out:
fsstack_copy_attr_all(inode, lower_inode, NULL);
return rc;