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| author | Miklos Szeredi <mszeredi@redhat.com> | 2022-10-28 14:25:21 +0200 |
|---|---|---|
| committer | Miklos Szeredi <mszeredi@redhat.com> | 2022-11-23 09:10:49 +0100 |
| commit | 4f8d37020e1fd0bf6ee9381ba918135ef3712efd (patch) | |
| tree | a6c3cf5367f2973ebf939dff329fb23a698ead77 /fs/fuse/dev.c | |
| parent | fs/fuse: Replace kmap() with kmap_local_page() (diff) | |
| download | linux-4f8d37020e1fd0bf6ee9381ba918135ef3712efd.tar.xz linux-4f8d37020e1fd0bf6ee9381ba918135ef3712efd.zip | |
fuse: add "expire only" mode to FUSE_NOTIFY_INVAL_ENTRY
Add a flag to entry expiration that lets the filesystem expire a dentry
without kicking it out from the cache immediately.
This makes a difference for overmounted dentries, where plain invalidation
would detach all submounts before dropping the dentry from the cache. If
only expiry is set on the dentry, then any overmounts are left alone and
until ->d_revalidate() is called.
Note: ->d_revalidate() is not called for the case of following a submount,
so invalidation will only be triggered for the non-overmounted case. The
dentry could also be mounted in a different mount instance, in which case
any submounts will still be detached.
Suggested-by: Jakob Blomer <jblomer@cern.ch>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Diffstat (limited to 'fs/fuse/dev.c')
| -rw-r--r-- | fs/fuse/dev.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c index b4a6e0a1b945..0a845fac3ba8 100644 --- a/fs/fuse/dev.c +++ b/fs/fuse/dev.c @@ -1498,7 +1498,7 @@ static int fuse_notify_inval_entry(struct fuse_conn *fc, unsigned int size, buf[outarg.namelen] = 0; down_read(&fc->killsb); - err = fuse_reverse_inval_entry(fc, outarg.parent, 0, &name); + err = fuse_reverse_inval_entry(fc, outarg.parent, 0, &name, outarg.flags); up_read(&fc->killsb); kfree(buf); return err; @@ -1546,7 +1546,7 @@ static int fuse_notify_delete(struct fuse_conn *fc, unsigned int size, buf[outarg.namelen] = 0; down_read(&fc->killsb); - err = fuse_reverse_inval_entry(fc, outarg.parent, outarg.child, &name); + err = fuse_reverse_inval_entry(fc, outarg.parent, outarg.child, &name, 0); up_read(&fc->killsb); kfree(buf); return err; |