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authorAl Viro <viro@zeniv.linux.org.uk>2013-01-31 12:34:58 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2013-02-26 02:46:05 -0500
commit38baba9ea02780c2df35c7a02552fddeb8576e16 (patch)
tree8e6cd8ecf1c6f1488dceab90015b76e349d4e2af /fs/9p
parent8add862fad426469a04c879bf5bb01f666a3c58e (diff)
downloadlinux-38baba9ea02780c2df35c7a02552fddeb8576e16.tar.bz2
9p: add fid-based variant of v9fs_xattr_set()
... making v9fs_xattr_set() a wrapper for it. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/9p')
-rw-r--r--fs/9p/xattr.c33
-rw-r--r--fs/9p/xattr.h2
2 files changed, 20 insertions, 15 deletions
diff --git a/fs/9p/xattr.c b/fs/9p/xattr.c
index 29653b70a9c3..c45e016b190f 100644
--- a/fs/9p/xattr.c
+++ b/fs/9p/xattr.c
@@ -111,19 +111,26 @@ ssize_t v9fs_xattr_get(struct dentry *dentry, const char *name,
int v9fs_xattr_set(struct dentry *dentry, const char *name,
const void *value, size_t value_len, int flags)
{
+ struct p9_fid *fid = v9fs_fid_lookup(dentry);
+ if (IS_ERR(fid))
+ return PTR_ERR(fid);
+ return v9fs_fid_xattr_set(fid, name, value, value_len, flags);
+}
+
+int v9fs_fid_xattr_set(struct p9_fid *fid, const char *name,
+ const void *value, size_t value_len, int flags)
+{
u64 offset = 0;
int retval, msize, write_count;
- struct p9_fid *fid = NULL;
p9_debug(P9_DEBUG_VFS, "name = %s value_len = %zu flags = %d\n",
name, value_len, flags);
- fid = v9fs_fid_clone(dentry);
- if (IS_ERR(fid)) {
- retval = PTR_ERR(fid);
- fid = NULL;
- goto error;
- }
+ /* Clone it */
+ fid = p9_client_walk(fid, 0, NULL, 1);
+ if (IS_ERR(fid))
+ return PTR_ERR(fid);
+
/*
* On success fid points to xattr
*/
@@ -131,7 +138,8 @@ int v9fs_xattr_set(struct dentry *dentry, const char *name,
if (retval < 0) {
p9_debug(P9_DEBUG_VFS, "p9_client_xattrcreate failed %d\n",
retval);
- goto error;
+ p9_client_clunk(fid);
+ return retval;
}
msize = fid->clnt->msize;
while (value_len) {
@@ -144,17 +152,12 @@ int v9fs_xattr_set(struct dentry *dentry, const char *name,
if (write_count < 0) {
/* error in xattr write */
retval = write_count;
- goto error;
+ break;
}
offset += write_count;
value_len -= write_count;
}
- /* Total read xattr bytes */
- retval = offset;
-error:
- if (fid)
- retval = p9_client_clunk(fid);
- return retval;
+ return p9_client_clunk(fid);
}
ssize_t v9fs_listxattr(struct dentry *dentry, char *buffer, size_t buffer_size)
diff --git a/fs/9p/xattr.h b/fs/9p/xattr.h
index eaa837c53bd5..eec348a3df71 100644
--- a/fs/9p/xattr.h
+++ b/fs/9p/xattr.h
@@ -27,6 +27,8 @@ extern ssize_t v9fs_fid_xattr_get(struct p9_fid *, const char *,
void *, size_t);
extern ssize_t v9fs_xattr_get(struct dentry *, const char *,
void *, size_t);
+extern int v9fs_fid_xattr_set(struct p9_fid *, const char *,
+ const void *, size_t, int);
extern int v9fs_xattr_set(struct dentry *, const char *,
const void *, size_t, int);
extern ssize_t v9fs_listxattr(struct dentry *, char *, size_t);