diff options
| author | Miklos Szeredi | 2007-10-18 12:07:02 +0200 |
|---|---|---|
| committer | Linus Torvalds | 2007-10-18 23:37:31 +0200 |
| commit | 6ff958edbf39c014eb06b65ad25b736be08c4e63 (patch) | |
| tree | f87af1ae11b321cfa38c25378229f25942797385 /fs/fuse/inode.c | |
| parent | fuse: improve utimes support (diff) | |
| download | kernel-qcow2-linux-6ff958edbf39c014eb06b65ad25b736be08c4e63.tar.gz kernel-qcow2-linux-6ff958edbf39c014eb06b65ad25b736be08c4e63.tar.xz kernel-qcow2-linux-6ff958edbf39c014eb06b65ad25b736be08c4e63.zip | |
fuse: add atomic open+truncate support
This patch allows fuse filesystems to implement open(..., O_TRUNC) as a single
request, instead of separate truncate and open requests.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/fuse/inode.c')
| -rw-r--r-- | fs/fuse/inode.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c index 6ef3973f4048..3c13981f48e2 100644 --- a/fs/fuse/inode.c +++ b/fs/fuse/inode.c @@ -531,6 +531,8 @@ static void process_init_reply(struct fuse_conn *fc, struct fuse_req *req) fc->async_read = 1; if (!(arg->flags & FUSE_POSIX_LOCKS)) fc->no_lock = 1; + if (arg->flags & FUSE_ATOMIC_O_TRUNC) + fc->atomic_o_trunc = 1; } else { ra_pages = fc->max_read / PAGE_CACHE_SIZE; fc->no_lock = 1; @@ -553,7 +555,8 @@ static void fuse_send_init(struct fuse_conn *fc, struct fuse_req *req) arg->major = FUSE_KERNEL_VERSION; arg->minor = FUSE_KERNEL_MINOR_VERSION; arg->max_readahead = fc->bdi.ra_pages * PAGE_CACHE_SIZE; - arg->flags |= FUSE_ASYNC_READ | FUSE_POSIX_LOCKS | FUSE_FILE_OPS; + arg->flags |= FUSE_ASYNC_READ | FUSE_POSIX_LOCKS | FUSE_FILE_OPS | + FUSE_ATOMIC_O_TRUNC; req->in.h.opcode = FUSE_INIT; req->in.numargs = 1; req->in.args[0].size = sizeof(*arg); |