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| author | David Howells <dhowells@redhat.com> | 2018-10-20 02:57:57 +0300 |
|---|---|---|
| committer | David Howells <dhowells@redhat.com> | 2018-10-24 02:41:08 +0300 |
| commit | 3b6492df4153b8550d347dfc581856138678a231 (patch) | |
| tree | 2a4acc9c8cef93e940520369f61034485f4eb434 /fs/afs/afs.h | |
| parent | 2a0b4f64c9edcdcb67306f26d9d08ef982cb0ccd (diff) | |
| download | linux-3b6492df4153b8550d347dfc581856138678a231.tar.xz | |
afs: Increase to 64-bit volume ID and 96-bit vnode ID for YFS
Increase the sizes of the volume ID to 64 bits and the vnode ID (inode
number equivalent) to 96 bits to allow the support of YFS.
This requires the iget comparator to check the vnode->fid rather than i_ino
and i_generation as i_ino is not sufficiently capacious. It also requires
this data to be placed into the vnode cache key for fscache.
For the moment, just discard the top 32 bits of the vnode ID when returning
it though stat.
Signed-off-by: David Howells <dhowells@redhat.com>
Diffstat (limited to 'fs/afs/afs.h')
| -rw-r--r-- | fs/afs/afs.h | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/fs/afs/afs.h b/fs/afs/afs.h index b4ff1f7ae4ab..c23b31b742fa 100644 --- a/fs/afs/afs.h +++ b/fs/afs/afs.h @@ -23,9 +23,9 @@ #define AFSPATHMAX 1024 /* Maximum length of a pathname plus NUL */ #define AFSOPAQUEMAX 1024 /* Maximum length of an opaque field */ -typedef unsigned afs_volid_t; -typedef unsigned afs_vnodeid_t; -typedef unsigned long long afs_dataversion_t; +typedef u64 afs_volid_t; +typedef u64 afs_vnodeid_t; +typedef u64 afs_dataversion_t; typedef enum { AFSVL_RWVOL, /* read/write volume */ @@ -52,8 +52,9 @@ typedef enum { */ struct afs_fid { afs_volid_t vid; /* volume ID */ - afs_vnodeid_t vnode; /* file index within volume */ - unsigned unique; /* unique ID number (file index version) */ + afs_vnodeid_t vnode; /* Lower 64-bits of file index within volume */ + u32 vnode_hi; /* Upper 32-bits of file index */ + u32 unique; /* unique ID number (file index version) */ }; /* |