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| author | David Howells <dhowells@redhat.com> | 2009-04-03 16:42:45 +0100 |
|---|---|---|
| committer | David Howells <dhowells@redhat.com> | 2009-04-03 16:42:45 +0100 |
| commit | 7f8e05f60c87646e12c761fef61dd71a7e67112e (patch) | |
| tree | f33bfcd5b4662a48890e8245362b381437be76fb /fs/nfs/fscache.c | |
| parent | 9a9fc1c03315f1606596e55b4096d39e2079a041 (diff) | |
| download | linux-7f8e05f60c87646e12c761fef61dd71a7e67112e.tar.gz linux-7f8e05f60c87646e12c761fef61dd71a7e67112e.tar.bz2 linux-7f8e05f60c87646e12c761fef61dd71a7e67112e.zip | |
NFS: Store pages from an NFS inode into a local cache
Store pages from an NFS inode into the cache data storage object associated
with that inode.
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Steve Dickson <steved@redhat.com>
Acked-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Tested-by: Daire Byrne <Daire.Byrne@framestore.com>
Diffstat (limited to 'fs/nfs/fscache.c')
| -rw-r--r-- | fs/nfs/fscache.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/fs/nfs/fscache.c b/fs/nfs/fscache.c index 3a3056657858..379be678cb7e 100644 --- a/fs/nfs/fscache.c +++ b/fs/nfs/fscache.c @@ -493,3 +493,31 @@ int __nfs_readpages_from_fscache(struct nfs_open_context *ctx, return ret; } + +/* + * Store a newly fetched page in fscache + * - PG_fscache must be set on the page + */ +void __nfs_readpage_to_fscache(struct inode *inode, struct page *page, int sync) +{ + int ret; + + dfprintk(FSCACHE, + "NFS: readpage_to_fscache(fsc:%p/p:%p(i:%lx f:%lx)/%d)\n", + NFS_I(inode)->fscache, page, page->index, page->flags, sync); + + ret = fscache_write_page(NFS_I(inode)->fscache, page, GFP_KERNEL); + dfprintk(FSCACHE, + "NFS: readpage_to_fscache: p:%p(i:%lu f:%lx) ret %d\n", + page, page->index, page->flags, ret); + + if (ret != 0) { + fscache_uncache_page(NFS_I(inode)->fscache, page); + nfs_add_fscache_stats(inode, + NFSIOS_FSCACHE_PAGES_WRITTEN_FAIL, 1); + nfs_add_fscache_stats(inode, NFSIOS_FSCACHE_PAGES_UNCACHED, 1); + } else { + nfs_add_fscache_stats(inode, + NFSIOS_FSCACHE_PAGES_WRITTEN_OK, 1); + } +} |