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| author | Maxim Patlasov <mpatlasov@parallels.com> | 2012-12-18 14:05:08 +0400 |
|---|---|---|
| committer | Miklos Szeredi <mszeredi@suse.cz> | 2013-04-18 10:55:24 +0200 |
| commit | efb9fa9e911b23c7ea5330215bda778a7c69dba8 (patch) | |
| tree | 7af69df4b3f3c5b89dc0e245a974fec358f23028 /fs/fuse/dir.c | |
| parent | 439ee5f0c5080d4fd15fda0c5bbee1fb3a57894e (diff) | |
| download | lwn-efb9fa9e911b23c7ea5330215bda778a7c69dba8.tar.gz lwn-efb9fa9e911b23c7ea5330215bda778a7c69dba8.zip | |
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.c | 17 |
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, |