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 /xlators/performance/io-cache | |
| 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 'xlators/performance/io-cache')
| -rw-r--r-- | xlators/performance/io-cache/src/io-cache.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/xlators/performance/io-cache/src/io-cache.c b/xlators/performance/io-cache/src/io-cache.c index 85e876531..bdaf0f1b8 100644 --- a/xlators/performance/io-cache/src/io-cache.c +++ b/xlators/performance/io-cache/src/io-cache.c @@ -313,6 +313,18 @@ ioc_forget (xlator_t *this, inode_t *inode) return 0; } +static int32_t +ioc_invalidate(xlator_t *this, inode_t *inode) +{ + ioc_inode_t *ioc_inode = NULL; + + inode_ctx_get(inode, this, (uint64_t *) &ioc_inode); + + if (ioc_inode) + ioc_inode_flush(ioc_inode); + + return 0; +} /* * ioc_cache_validate_cbk - @@ -1977,7 +1989,8 @@ struct xlator_dumpops dumpops = { struct xlator_cbks cbks = { .forget = ioc_forget, - .release = ioc_release + .release = ioc_release, + .invalidate = ioc_invalidate, }; struct volume_options options[] = { |