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authorAl Viro <viro@zeniv.linux.org.uk>2013-11-13 07:45:40 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2013-11-13 07:45:40 -0500
commitede4cebce16f5643c61aedd6d88d9070a1d23a68 (patch)
treee5badf413ffaa9326f46597d065a88ba5f6c2cf7
parent4ec6c2aeab8a909418ac60b782a963cb7257207f (diff)
downloadop-kernel-dev-ede4cebce16f5643c61aedd6d88d9070a1d23a68.zip
op-kernel-dev-ede4cebce16f5643c61aedd6d88d9070a1d23a68.tar.gz
prepend_path() needs to reinitialize dentry/vfsmount/mnt on restarts
... and equivalent is needed in 3.12; it's broken there as well Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
-rw-r--r--fs/dcache.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/fs/dcache.c b/fs/dcache.c
index eacc853..a9dd384 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -2912,9 +2912,9 @@ static int prepend_path(const struct path *path,
const struct path *root,
char **buffer, int *buflen)
{
- struct dentry *dentry = path->dentry;
- struct vfsmount *vfsmnt = path->mnt;
- struct mount *mnt = real_mount(vfsmnt);
+ struct dentry *dentry;
+ struct vfsmount *vfsmnt;
+ struct mount *mnt;
int error = 0;
unsigned seq, m_seq = 0;
char *bptr;
@@ -2929,6 +2929,9 @@ restart:
bptr = *buffer;
blen = *buflen;
error = 0;
+ dentry = path->dentry;
+ vfsmnt = path->mnt;
+ mnt = real_mount(vfsmnt);
read_seqbegin_or_lock(&rename_lock, &seq);
while (dentry != root->dentry || vfsmnt != root->mnt) {
struct dentry * parent;
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