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| author | Frank van der Linden <fllinden@amazon.com> | 2020-06-24 01:39:04 +0300 |
|---|---|---|
| committer | Trond Myklebust <trond.myklebust@hammerspace.com> | 2020-07-14 00:52:46 +0300 |
| commit | 95ad37f90c338e3fd4abf61cecfe02b6f3e080f0 (patch) | |
| tree | cc65ec6496ed30eb9a48cf2eeda6e19be734c65f /include/uapi/linux/nfs_fs.h | |
| parent | 012a211abd5db098094ce429de5f046368391e68 (diff) | |
| download | linux-95ad37f90c338e3fd4abf61cecfe02b6f3e080f0.tar.xz | |
NFSv4.2: add client side xattr caching.
Implement client side caching for NFSv4.2 extended attributes. The cache
is a per-inode hashtable, with name/value entries. There is one special
entry for the listxattr cache.
NFS inodes have a pointer to a cache structure. The cache structure is
allocated on demand, freed when the cache is invalidated.
Memory shrinkers keep the size in check. Large entries (> PAGE_SIZE)
are collected by a separate shrinker, and freed more aggressively
than others.
Signed-off-by: Frank van der Linden <fllinden@amazon.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Diffstat (limited to 'include/uapi/linux/nfs_fs.h')
| -rw-r--r-- | include/uapi/linux/nfs_fs.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/uapi/linux/nfs_fs.h b/include/uapi/linux/nfs_fs.h index 7bcc8cd6831d..3afe3767c55d 100644 --- a/include/uapi/linux/nfs_fs.h +++ b/include/uapi/linux/nfs_fs.h @@ -56,6 +56,7 @@ #define NFSDBG_PNFS 0x1000 #define NFSDBG_PNFS_LD 0x2000 #define NFSDBG_STATE 0x4000 +#define NFSDBG_XATTRCACHE 0x8000 #define NFSDBG_ALL 0xFFFF |