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authorMaxim Patlasov <mpatlasov@parallels.com>2012-12-18 14:05:08 +0400
committerMiklos Szeredi <mszeredi@suse.cz>2013-04-18 10:55:24 +0200
commitefb9fa9e911b23c7ea5330215bda778a7c69dba8 (patch)
tree7af69df4b3f3c5b89dc0e245a974fec358f23028 /fs/fuse/dir.c
parent439ee5f0c5080d4fd15fda0c5bbee1fb3a57894e (diff)
downloadlinux-linaro-stable-efb9fa9e911b23c7ea5330215bda778a7c69dba8.tar.gz
fuse: truncate file if async dio failed
The patch improves error handling in fuse_direct_IO(): if we successfully submitted several fuse requests on behalf of synchronous direct write extending file and some of them failed, let's try to do our best to clean-up. Changed in v2: reuse fuse_do_setattr(). Thanks to Brian for suggestion. Signed-off-by: Maxim Patlasov <mpatlasov@parallels.com> Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Diffstat (limited to 'fs/fuse/dir.c')
-rw-r--r--fs/fuse/dir.c17
1 files changed, 9 insertions, 8 deletions
diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index ff15522481d4..254df56b847b 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -1562,10 +1562,9 @@ void fuse_release_nowrite(struct inode *inode)
* vmtruncate() doesn't allow for this case, so do the rlimit checking
* and the actual truncation by hand.
*/
-static int fuse_do_setattr(struct dentry *entry, struct iattr *attr,
- struct file *file)
+int fuse_do_setattr(struct inode *inode, struct iattr *attr,
+ struct file *file)
{
- struct inode *inode = entry->d_inode;
struct fuse_conn *fc = get_fuse_conn(inode);
struct fuse_req *req;
struct fuse_setattr_in inarg;
@@ -1574,9 +1573,6 @@ static int fuse_do_setattr(struct dentry *entry, struct iattr *attr,
loff_t oldsize;
int err;
- if (!fuse_allow_current_process(fc))
- return -EACCES;
-
if (!(fc->flags & FUSE_DEFAULT_PERMISSIONS))
attr->ia_valid |= ATTR_FORCE;
@@ -1671,10 +1667,15 @@ error:
static int fuse_setattr(struct dentry *entry, struct iattr *attr)
{
+ struct inode *inode = entry->d_inode;
+
+ if (!fuse_allow_current_process(get_fuse_conn(inode)))
+ return -EACCES;
+
if (attr->ia_valid & ATTR_FILE)
- return fuse_do_setattr(entry, attr, attr->ia_file);
+ return fuse_do_setattr(inode, attr, attr->ia_file);
else
- return fuse_do_setattr(entry, attr, NULL);
+ return fuse_do_setattr(inode, attr, NULL);
}
static int fuse_getattr(struct vfsmount *mnt, struct dentry *entry,