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

Pull fuse fixes from Miklos Szeredi:
 "This adds ctime update in the new cached writeback mode and also
  fixes/simplifies the mtime update handling.  Support for rename flags
  (aka renameat2) is also added to the userspace API"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
  fuse: add renameat2 support
  fuse: clear MS_I_VERSION
  fuse: clear FUSE_I_CTIME_DIRTY flag on setattr
  fuse: trust kernel i_ctime only
  fuse: remove .update_time
  fuse: allow ctime flushing to userspace
  fuse: fuse: add time_gran to INIT_OUT
  fuse: add .write_inode
  fuse: clean up fsync
  fuse: fuse: fallocate: use file_update_time()
  fuse: update mtime on open(O_TRUNC) in atomic_o_trunc mode
  fuse: update mtime on truncate(2)
  fuse: do not use uninitialized i_mode
  fuse: fix mtime update error in fsync
  fuse: check fallocate mode
  fuse: add __exit to fuse_ctl_cleanup

1 files changed, 12 insertions, 4 deletions

diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index 8d611696fcad..754dcf23de8a 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -175,9 +175,9 @@ void fuse_change_attributes_common(struct inode *inode, struct fuse_attr *attr,
 	if (!fc->writeback_cache || !S_ISREG(inode->i_mode)) {
 		inode->i_mtime.tv_sec   = attr->mtime;
 		inode->i_mtime.tv_nsec  = attr->mtimensec;
+		inode->i_ctime.tv_sec   = attr->ctime;
+		inode->i_ctime.tv_nsec  = attr->ctimensec;
 	}
-	inode->i_ctime.tv_sec   = attr->ctime;
-	inode->i_ctime.tv_nsec  = attr->ctimensec;
 
 	if (attr->blksize != 0)
 		inode->i_blkbits = ilog2(attr->blksize);
@@ -256,6 +256,8 @@ static void fuse_init_inode(struct inode *inode, struct fuse_attr *attr)
 	inode->i_size = attr->size;
 	inode->i_mtime.tv_sec  = attr->mtime;
 	inode->i_mtime.tv_nsec = attr->mtimensec;
+	inode->i_ctime.tv_sec  = attr->ctime;
+	inode->i_ctime.tv_nsec = attr->ctimensec;
 	if (S_ISREG(inode->i_mode)) {
 		fuse_init_common(inode);
 		fuse_init_file_inode(inode);
@@ -303,7 +305,7 @@ struct inode *fuse_iget(struct super_block *sb, u64 nodeid,
 
 	if ((inode->i_state & I_NEW)) {
 		inode->i_flags |= S_NOATIME;
-		if (!fc->writeback_cache || !S_ISREG(inode->i_mode))
+		if (!fc->writeback_cache || !S_ISREG(attr->mode))
 			inode->i_flags |= S_NOCMTIME;
 		inode->i_generation = generation;
 		inode->i_data.backing_dev_info = &fc->bdi;
@@ -788,6 +790,7 @@ static const struct super_operations fuse_super_operations = {
 	.alloc_inode    = fuse_alloc_inode,
 	.destroy_inode  = fuse_destroy_inode,
 	.evict_inode	= fuse_evict_inode,
+	.write_inode	= fuse_write_inode,
 	.drop_inode	= generic_delete_inode,
 	.remount_fs	= fuse_remount_fs,
 	.put_super	= fuse_put_super,
@@ -890,6 +893,11 @@ static void process_init_reply(struct fuse_conn *fc, struct fuse_req *req)
 				fc->async_dio = 1;
 			if (arg->flags & FUSE_WRITEBACK_CACHE)
 				fc->writeback_cache = 1;
+			if (arg->time_gran && arg->time_gran <= 1000000000)
+				fc->sb->s_time_gran = arg->time_gran;
+			else
+				fc->sb->s_time_gran = 1000000000;
+
 		} else {
 			ra_pages = fc->max_read / PAGE_CACHE_SIZE;
 			fc->no_lock = 1;
@@ -996,7 +1004,7 @@ static int fuse_fill_super(struct super_block *sb, void *data, int silent)
 	if (sb->s_flags & MS_MANDLOCK)
 		goto err;
 
-	sb->s_flags &= ~MS_NOSEC;
+	sb->s_flags &= ~(MS_NOSEC | MS_I_VERSION);
 
 	if (!parse_fuse_opt((char *) data, &d, is_bdev))
 		goto err;