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| author | Miklos Szeredi <mszeredi@suse.cz> | 2015-07-01 16:25:58 +0200 |
|---|---|---|
| committer | Miklos Szeredi <mszeredi@suse.cz> | 2015-07-01 16:25:58 +0200 |
| commit | 825d6d3395e88a616e4c953984d77eeacbad4310 (patch) | |
| tree | 1a8644c118994d7d7a743665cb657fd21a450443 /fs/fuse/file.c | |
| parent | 0d8e84b0432beb6d11a1c82deeb9dc1a7bee02c0 (diff) | |
| download | linux-825d6d3395e88a616e4c953984d77eeacbad4310.tar.bz2 | |
fuse: req use bitops
Finer grained locking will mean there's no single lock to protect
modification of bitfileds in fuse_req.
So move to using bitops. Can use the non-atomic variants for those which
happen while the request definitely has only one reference.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Reviewed-by: Ashish Samant <ashish.samant@oracle.com>
Diffstat (limited to 'fs/fuse/file.c')
| -rw-r--r-- | fs/fuse/file.c | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/fs/fuse/file.c b/fs/fuse/file.c index 5ef05b5c4cff..bf272263c1a2 100644 --- a/fs/fuse/file.c +++ b/fs/fuse/file.c @@ -96,17 +96,17 @@ static void fuse_file_put(struct fuse_file *ff, bool sync) * Drop the release request when client does not * implement 'open' */ - req->background = 0; + __clear_bit(FR_BACKGROUND, &req->flags); iput(req->misc.release.inode); fuse_put_request(ff->fc, req); } else if (sync) { - req->background = 0; + __clear_bit(FR_BACKGROUND, &req->flags); fuse_request_send(ff->fc, req); iput(req->misc.release.inode); fuse_put_request(ff->fc, req); } else { req->end = fuse_release_end; - req->background = 1; + __set_bit(FR_BACKGROUND, &req->flags); fuse_request_send_background(ff->fc, req); } kfree(ff); @@ -299,8 +299,8 @@ void fuse_sync_release(struct fuse_file *ff, int flags) { WARN_ON(atomic_read(&ff->count) > 1); fuse_prepare_release(ff, flags, FUSE_RELEASE); - ff->reserved_req->force = 1; - ff->reserved_req->background = 0; + __set_bit(FR_FORCE, &ff->reserved_req->flags); + __clear_bit(FR_BACKGROUND, &ff->reserved_req->flags); fuse_request_send(ff->fc, ff->reserved_req); fuse_put_request(ff->fc, ff->reserved_req); kfree(ff); @@ -426,7 +426,7 @@ static int fuse_flush(struct file *file, fl_owner_t id) req->in.numargs = 1; req->in.args[0].size = sizeof(inarg); req->in.args[0].value = &inarg; - req->force = 1; + __set_bit(FR_FORCE, &req->flags); fuse_request_send(fc, req); err = req->out.h.error; fuse_put_request(fc, req); @@ -1611,7 +1611,8 @@ static int fuse_writepage_locked(struct page *page) if (!req) goto err; - req->background = 1; /* writeback always goes to bg_queue */ + /* writeback always goes to bg_queue */ + __set_bit(FR_BACKGROUND, &req->flags); tmp_page = alloc_page(GFP_NOFS | __GFP_HIGHMEM); if (!tmp_page) goto err_free; @@ -1830,7 +1831,7 @@ static int fuse_writepages_fill(struct page *page, req->misc.write.in.write_flags |= FUSE_WRITE_CACHE; req->misc.write.next = NULL; req->in.argpages = 1; - req->background = 1; + __set_bit(FR_BACKGROUND, &req->flags); req->num_pages = 0; req->end = fuse_writepage_end; req->inode = inode; |