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ecryptfs: add missing lock around notify_change

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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>
This commit is contained in:
Miklos Szeredi
2008-04-29 00:59:48 -07:00
committed by Linus Torvalds
parent 18d1dbf1d4
commit 9c3580aa52
1 changed files with 2 additions and 0 deletions
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2
fs/ecryptfs/inode.c
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@@ -908,7 +908,9 @@ static int ecryptfs_setattr(struct dentry *dentry, struct iattr *ia)
if (ia->ia_valid & (ATTR_KILL_SUID | ATTR_KILL_SGID)) if (ia->ia_valid & (ATTR_KILL_SUID | ATTR_KILL_SGID))
ia->ia_valid &= ~ATTR_MODE; ia->ia_valid &= ~ATTR_MODE;
mutex_lock(&lower_dentry->d_inode->i_mutex);
rc = notify_change(lower_dentry, ia); rc = notify_change(lower_dentry, ia);
mutex_unlock(&lower_dentry->d_inode->i_mutex);
out: out:
fsstack_copy_attr_all(inode, lower_inode, NULL); fsstack_copy_attr_all(inode, lower_inode, NULL);
return rc; return rc;