diff options
| author | Brian Foster <bfoster@redhat.com> | 2012-07-16 15:23:48 -0400 |
|---|---|---|
| committer | Miklos Szeredi <mszeredi@suse.cz> | 2012-07-18 16:09:40 +0200 |
| commit | 72d0d248ca8232dbd30d35b42d0d86e39b3e322b (patch) | |
| tree | b186ec7e6c19540660631fd2e169494657882b1d /fs/fuse | |
| parent | 84a1caf1453c3d44050bd22db958af4a7f99315c (diff) | |
| download | lwn-72d0d248ca8232dbd30d35b42d0d86e39b3e322b.tar.gz lwn-72d0d248ca8232dbd30d35b42d0d86e39b3e322b.zip | |
fuse: add FUSE_AUTO_INVAL_DATA init flag
FUSE_AUTO_INVAL_DATA is provided to enable updated/auto cache
invalidation logic.
Signed-off-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Diffstat (limited to 'fs/fuse')
| -rw-r--r-- | fs/fuse/fuse_i.h | 3 | ||||
| -rw-r--r-- | fs/fuse/inode.c | 4 |
2 files changed, 6 insertions, 1 deletions
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h index 771fb6322c07..e24dd74e3068 100644 --- a/fs/fuse/fuse_i.h +++ b/fs/fuse/fuse_i.h @@ -484,6 +484,9 @@ struct fuse_conn { /** Is fallocate not implemented by fs? */ unsigned no_fallocate:1; + /** Use enhanced/automatic page cache invalidation. */ + unsigned auto_inval_data:1; + /** The number of requests waiting for completion */ atomic_t num_waiting; diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c index 1cd61652018c..dd37ee291b8b 100644 --- a/fs/fuse/inode.c +++ b/fs/fuse/inode.c @@ -834,6 +834,8 @@ static void process_init_reply(struct fuse_conn *fc, struct fuse_req *req) fc->big_writes = 1; if (arg->flags & FUSE_DONT_MASK) fc->dont_mask = 1; + if (arg->flags & FUSE_AUTO_INVAL_DATA) + fc->auto_inval_data = 1; } else { ra_pages = fc->max_read / PAGE_CACHE_SIZE; fc->no_lock = 1; @@ -859,7 +861,7 @@ static void fuse_send_init(struct fuse_conn *fc, struct fuse_req *req) arg->max_readahead = fc->bdi.ra_pages * PAGE_CACHE_SIZE; arg->flags |= FUSE_ASYNC_READ | FUSE_POSIX_LOCKS | FUSE_ATOMIC_O_TRUNC | FUSE_EXPORT_SUPPORT | FUSE_BIG_WRITES | FUSE_DONT_MASK | - FUSE_FLOCK_LOCKS; + FUSE_FLOCK_LOCKS | FUSE_AUTO_INVAL_DATA; req->in.h.opcode = FUSE_INIT; req->in.numargs = 1; req->in.args[0].size = sizeof(*arg); |