msm-4.14

mirror of https://github.com/rd-stuffs/msm-4.14.git synced 2025-02-20 11:45:48 +08:00

History

Andrew Gallagher 7678ac5061 fuse: support clients that don't implement 'open'

open/release operations require userspace transitions to keep track
of the open count and to perform any FS-specific setup.  However,
for some purely read-only FSs which don't need to perform any setup
at open/release time, we can avoid the performance overhead of
calling into userspace for open/release calls.

This patch adds the necessary support to the fuse kernel modules to prevent
open/release operations from hitting in userspace. When the client returns
ENOSYS, we avoid sending the subsequent release to userspace, and also
remember this so that future opens also don't trigger a userspace
operation.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>

2014-01-22 19:36:59 +01:00

control.c

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

cuse.c

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

2013-11-13 15:34:18 +09:00

dev.c

fuse: fix SetPageUptodate() condition in STORE

2014-01-22 19:36:58 +01:00

dir.c

fuse: don't invalidate attrs when not using atime