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authorMiklos Szeredi <mszeredi@suse.cz>2013-09-05 11:44:43 +0200
committerAl Viro <viro@zeniv.linux.org.uk>2013-09-05 16:23:54 -0400
commite2a6b95236eba5341253a2e4a50946355f887303 (patch)
treec85bd19135c6a9242e81c30eb0c81091c84d9c03 /fs/fuse/dir.c
parent5835f3390e35ae3da9add646a2ca2cc30b47370e (diff)
downloadop-kernel-dev-e2a6b95236eba5341253a2e4a50946355f887303.zip
op-kernel-dev-e2a6b95236eba5341253a2e4a50946355f887303.tar.gz
fuse: clean up return in fuse_dentry_revalidate()
On errors unrelated to the filesystem's state (ENOMEM, ENOTCONN) return the error itself from ->d_revalidate() insted of returning zero (invalid). Also make a common label for invalidating the dentry. This will be used by the next patch. Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/fuse/dir.c')
-rw-r--r--fs/fuse/dir.c26
1 files changed, 18 insertions, 8 deletions
diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index 131d14b..25c6cfe 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -182,10 +182,11 @@ static int fuse_dentry_revalidate(struct dentry *entry, unsigned int flags)
struct inode *inode;
struct dentry *parent;
struct fuse_conn *fc;
+ int ret;
inode = ACCESS_ONCE(entry->d_inode);
if (inode && is_bad_inode(inode))
- return 0;
+ goto invalid;
else if (fuse_dentry_time(entry) < get_jiffies_64()) {
int err;
struct fuse_entry_out outarg;
@@ -195,20 +196,23 @@ static int fuse_dentry_revalidate(struct dentry *entry, unsigned int flags)
/* For negative dentries, always do a fresh lookup */
if (!inode)
- return 0;
+ goto invalid;
+ ret = -ECHILD;
if (flags & LOOKUP_RCU)
- return -ECHILD;
+ goto out;
fc = get_fuse_conn(inode);
req = fuse_get_req_nopages(fc);
+ ret = PTR_ERR(req);
if (IS_ERR(req))
- return 0;
+ goto out;
forget = fuse_alloc_forget();
if (!forget) {
fuse_put_request(fc, req);
- return 0;
+ ret = -ENOMEM;
+ goto out;
}
attr_version = fuse_get_attr_version(fc);
@@ -227,7 +231,7 @@ static int fuse_dentry_revalidate(struct dentry *entry, unsigned int flags)
struct fuse_inode *fi = get_fuse_inode(inode);
if (outarg.nodeid != get_node_id(inode)) {
fuse_queue_forget(fc, forget, outarg.nodeid, 1);
- return 0;
+ goto invalid;
}
spin_lock(&fc->lock);
fi->nlookup++;
@@ -235,7 +239,7 @@ static int fuse_dentry_revalidate(struct dentry *entry, unsigned int flags)
}
kfree(forget);
if (err || (outarg.attr.mode ^ inode->i_mode) & S_IFMT)
- return 0;
+ goto invalid;
fuse_change_attributes(inode, &outarg.attr,
entry_attr_timeout(&outarg),
@@ -249,7 +253,13 @@ static int fuse_dentry_revalidate(struct dentry *entry, unsigned int flags)
dput(parent);
}
}
- return 1;
+ ret = 1;
+out:
+ return ret;
+
+invalid:
+ ret = 0;
+ goto out;
}
static int invalid_nodeid(u64 nodeid)
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