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author | J. Bruce Fields <bfields@redhat.com> | 2011-12-12 20:00:35 (GMT) |
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committer | J. Bruce Fields <bfields@redhat.com> | 2011-12-12 20:27:00 (GMT) |
commit | f32f3c2d3f09a586349ca9180885dc8741290fd9 (patch) | |
tree | 99a08c14a8d400f20f366c310c8f588f2ce3b9cf /fs | |
parent | f5c8593b94190aabdcf207a544f082c7816c4fe6 (diff) | |
download | linux-fsl-qoriq-f32f3c2d3f09a586349ca9180885dc8741290fd9.tar.xz |
nfsd4: initialize special stateid's at compile time
Stateid's with "other" ("opaque") field all zeros or all ones are
reserved. We define all_ones separately on the off chance there will be
more such some day, though currently all the other special stateid's
have zero other field.
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'fs')
-rw-r--r-- | fs/nfsd/nfs4state.c | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index 6ab6779..213da7b 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -49,12 +49,20 @@ time_t nfsd4_lease = 90; /* default lease time */ time_t nfsd4_grace = 90; static time_t boot_time; -static stateid_t zerostateid; /* bits all 0 */ -static stateid_t onestateid; /* bits all 1 */ + +#define all_ones {{~0,~0},~0} +static const stateid_t one_stateid = { + .si_generation = ~0, + .si_opaque = all_ones, +}; +static const stateid_t zero_stateid = { + /* all fields zero */ +}; + static u64 current_sessionid = 1; -#define ZERO_STATEID(stateid) (!memcmp((stateid), &zerostateid, sizeof(stateid_t))) -#define ONE_STATEID(stateid) (!memcmp((stateid), &onestateid, sizeof(stateid_t))) +#define ZERO_STATEID(stateid) (!memcmp((stateid), &zero_stateid, sizeof(stateid_t))) +#define ONE_STATEID(stateid) (!memcmp((stateid), &one_stateid, sizeof(stateid_t))) /* forward declarations */ static int check_for_locks(struct nfs4_file *filp, struct nfs4_lockowner *lowner); @@ -4564,7 +4572,6 @@ nfs4_state_init(void) } for (i = 0; i < LOCKOWNER_INO_HASH_SIZE; i++) INIT_LIST_HEAD(&lockowner_ino_hashtbl[i]); - memset(&onestateid, ~0, sizeof(stateid_t)); INIT_LIST_HEAD(&close_lru); INIT_LIST_HEAD(&client_lru); INIT_LIST_HEAD(&del_recall_lru); |