Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input

[~andy/linux] / fs / cifs / file.c

diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 460d87b7cda08b1280ac05b2f4ac3378230a4f60..81725e9286e911f501e4a78d1d7c28768753d118 100644 (file)
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -835,13 +835,21 @@ cifs_posix_lock_set(struct file *file, struct file_lock *flock)
        if ((flock->fl_flags & FL_POSIX) == 0)
                return rc;
 
+try_again:
        mutex_lock(&cinode->lock_mutex);
        if (!cinode->can_cache_brlcks) {
                mutex_unlock(&cinode->lock_mutex);
                return rc;
        }
-       rc = posix_lock_file_wait(file, flock);
+
+       rc = posix_lock_file(file, flock, NULL);
        mutex_unlock(&cinode->lock_mutex);
+       if (rc == FILE_LOCK_DEFERRED) {
+               rc = wait_event_interruptible(flock->fl_wait, !flock->fl_next);
+               if (!rc)
+                       goto try_again;
+               locks_delete_block(flock);
+       }
        return rc;
 }
 
@@ -2170,7 +2178,7 @@ cifs_iovec_write(struct file *file, const struct iovec *iov,
        unsigned long nr_pages, i;
        size_t copied, len, cur_len;
        ssize_t total_written = 0;
-       loff_t offset = *poffset;
+       loff_t offset;
        struct iov_iter it;
        struct cifsFileInfo *open_file;
        struct cifs_tcon *tcon;
@@ -2192,6 +2200,7 @@ cifs_iovec_write(struct file *file, const struct iovec *iov,
        cifs_sb = CIFS_SB(file->f_path.dentry->d_sb);
        open_file = file->private_data;
        tcon = tlink_tcon(open_file->tlink);
+       offset = *poffset;
 
        if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_RWPIDFORWARD)
                pid = open_file->pid;