diff options
| author | Brian Foster <bfoster@redhat.com> | 2012-06-13 12:08:38 -0400 |
|---|---|---|
| committer | Anand Avati <avati@redhat.com> | 2012-07-13 09:46:09 -0700 |
| commit | 32ffb79f18cbaebcbe6bba51599ca234f44675cc (patch) | |
| tree | 3f7589078e618cf0f575e5ad03a67afecb50d006 /libglusterfs/src/xlator.h | |
| parent | ca4900497142127c31d0dba7a53a921200aaf790 (diff) | |
fuse/md-cache: add support for the 'fopen-keep-cache' mount option
fopen-keep-cache disables unconditional page-cache invalidations
on file open in fuse (via FOPEN_KEEP_CACHE) and replaces that
behavior with detection of remote changes and explicit
invalidations from mount/fuse. This option improves local caching
through the page cache and native client.
This change defines a new 'invalidate' translator callback to
identify when an inode's cache mapping has been determined to be
invalid. md-cache implements the policy to detect and invoke
inode invalidations. fuse-bridge and io-cache implement
invalidate handlers to invalidate the respective caches (page
cache in the case of fuse).
BUG: 833564
Change-Id: I99818da5777eaf06276c1c0b194669f5bab92d48
Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-on: http://review.gluster.com/3584
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Anand Avati <avati@redhat.com>
Diffstat (limited to 'libglusterfs/src/xlator.h')
| -rw-r--r-- | libglusterfs/src/xlator.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/libglusterfs/src/xlator.h b/libglusterfs/src/xlator.h index 2fce7dc474a..5162d20e500 100644 --- a/libglusterfs/src/xlator.h +++ b/libglusterfs/src/xlator.h @@ -730,10 +730,13 @@ typedef int32_t (*cbk_forget_t) (xlator_t *this, typedef int32_t (*cbk_release_t) (xlator_t *this, fd_t *fd); +typedef int32_t (*cbk_invalidate_t)(xlator_t *this, inode_t *inode); + struct xlator_cbks { cbk_forget_t forget; cbk_release_t release; cbk_release_t releasedir; + cbk_invalidate_t invalidate; }; typedef int32_t (*dumpop_priv_t) (xlator_t *this); |