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authorLinus Torvalds <torvalds@linux-foundation.org>2016-05-28 03:14:05 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2016-05-28 03:14:05 +0300
commitd102a56edba7a3f236454716fa09920e66772044 (patch)
treebfed5508d09028bbf180507b21b8ab25c6980eac /fs/overlayfs
parent0121a32201dcc72933fb6019c41661e2f8a02fc5 (diff)
parent3767e255b390d72f9a33c08d9e86c5f21f25860f (diff)
downloadlinux-d102a56edba7a3f236454716fa09920e66772044.tar.xz
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs fixes from Al Viro: "Followups to the parallel lookup work: - update docs - restore killability of the places that used to take ->i_mutex killably now that we have down_write_killable() merged - Additionally, it turns out that I missed a prerequisite for security_d_instantiate() stuff - ->getxattr() wasn't the only thing that could be called before dentry is attached to inode; with smack we needed the same treatment applied to ->setxattr() as well" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: switch ->setxattr() to passing dentry and inode separately switch xattr_handler->set() to passing dentry and inode separately restore killability of old mutex_lock_killable(&inode->i_mutex) users add down_write_killable_nested() update D/f/directory-locking
Diffstat (limited to 'fs/overlayfs')
-rw-r--r--fs/overlayfs/inode.c5
-rw-r--r--fs/overlayfs/overlayfs.h5
-rw-r--r--fs/overlayfs/readdir.c4
3 files changed, 7 insertions, 7 deletions
diff --git a/fs/overlayfs/inode.c b/fs/overlayfs/inode.c
index c7b31a03dc9c..0ed7c4012437 100644
--- a/fs/overlayfs/inode.c
+++ b/fs/overlayfs/inode.c
@@ -210,8 +210,9 @@ static bool ovl_is_private_xattr(const char *name)
return strncmp(name, OVL_XATTR_PRE_NAME, OVL_XATTR_PRE_LEN) == 0;
}
-int ovl_setxattr(struct dentry *dentry, const char *name,
- const void *value, size_t size, int flags)
+int ovl_setxattr(struct dentry *dentry, struct inode *inode,
+ const char *name, const void *value,
+ size_t size, int flags)
{
int err;
struct dentry *upperdentry;
diff --git a/fs/overlayfs/overlayfs.h b/fs/overlayfs/overlayfs.h
index 724f5fcb4e24..4bd9b5ba8f42 100644
--- a/fs/overlayfs/overlayfs.h
+++ b/fs/overlayfs/overlayfs.h
@@ -172,8 +172,9 @@ int ovl_check_d_type_supported(struct path *realpath);
/* inode.c */
int ovl_setattr(struct dentry *dentry, struct iattr *attr);
int ovl_permission(struct inode *inode, int mask);
-int ovl_setxattr(struct dentry *dentry, const char *name,
- const void *value, size_t size, int flags);
+int ovl_setxattr(struct dentry *dentry, struct inode *inode,
+ const char *name, const void *value,
+ size_t size, int flags);
ssize_t ovl_getxattr(struct dentry *dentry, struct inode *inode,
const char *name, void *value, size_t size);
ssize_t ovl_listxattr(struct dentry *dentry, char *list, size_t size);
diff --git a/fs/overlayfs/readdir.c b/fs/overlayfs/readdir.c
index d11ae826bcbc..cf37fc76fc9f 100644
--- a/fs/overlayfs/readdir.c
+++ b/fs/overlayfs/readdir.c
@@ -210,9 +210,7 @@ static int ovl_check_whiteouts(struct dentry *dir, struct ovl_readdir_data *rdd)
old_cred = ovl_override_creds(rdd->dentry->d_sb);
- inode_lock(dir->d_inode);
- err = 0;
- // XXX: err = mutex_lock_killable(&dir->d_inode->i_mutex);
+ err = down_write_killable(&dir->d_inode->i_rwsem);
if (!err) {
while (rdd->first_maybe_whiteout) {
p = rdd->first_maybe_whiteout;