diff options
| author | Kinglong Mee <kinglongmee@gmail.com> | 2014-08-22 10:18:44 -0400 |
|---|---|---|
| committer | Jeff Layton <jlayton@primarydata.com> | 2014-09-09 16:01:09 -0400 |
| commit | aef9583b234a4ecdbcaf2c3024f29d4244b18e83 (patch) | |
| tree | a06c0982c3aa88126018bcd57d714da003fc59d0 | |
| parent | b5971afa0b33361667bc88f3e0eb3fc31f778dc6 (diff) | |
| download | linux-aef9583b234a4ecdbcaf2c3024f29d4244b18e83.tar.bz2 | |
NFSD: Get reference of lockowner when coping file_lock
v5: using nfs4_get_stateowner() instead of an inline function
v3: Update based on Jeff's comments
v2: Fix bad using of struct file_lock_operations for handle the owner
Acked-by: Jeff Layton <jlayton@primarydata.com>
Signed-off-by: Kinglong Mee <kinglongmee@gmail.com>
Signed-off-by: Jeff Layton <jlayton@primarydata.com>
| -rw-r--r-- | fs/nfsd/nfs4state.c | 25 |
1 files changed, 21 insertions, 4 deletions
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index 2d03a4188671..a91e521622c3 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -4876,9 +4876,25 @@ nfs4_transform_lock_offset(struct file_lock *lock) lock->fl_end = OFFSET_MAX; } -/* Hack!: For now, we're defining this just so we can use a pointer to it - * as a unique cookie to identify our (NFSv4's) posix locks. */ +static void nfsd4_fl_get_owner(struct file_lock *dst, struct file_lock *src) +{ + struct nfs4_lockowner *lo = (struct nfs4_lockowner *)src->fl_owner; + dst->fl_owner = (fl_owner_t)lockowner(nfs4_get_stateowner(&lo->lo_owner)); +} + +static void nfsd4_fl_put_owner(struct file_lock *fl) +{ + struct nfs4_lockowner *lo = (struct nfs4_lockowner *)fl->fl_owner; + + if (lo) { + nfs4_put_stateowner(&lo->lo_owner); + fl->fl_owner = NULL; + } +} + static const struct lock_manager_operations nfsd_posix_mng_ops = { + .lm_get_owner = nfsd4_fl_get_owner, + .lm_put_owner = nfsd4_fl_put_owner, }; static inline void @@ -5243,7 +5259,8 @@ nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, status = nfserr_openmode; goto out; } - file_lock->fl_owner = (fl_owner_t)lock_sop; + + file_lock->fl_owner = (fl_owner_t)lockowner(nfs4_get_stateowner(&lock_sop->lo_owner)); file_lock->fl_pid = current->tgid; file_lock->fl_file = filp; file_lock->fl_flags = FL_POSIX; @@ -5439,7 +5456,7 @@ nfsd4_locku(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, } file_lock->fl_type = F_UNLCK; - file_lock->fl_owner = (fl_owner_t)lockowner(stp->st_stateowner); + file_lock->fl_owner = (fl_owner_t)lockowner(nfs4_get_stateowner(stp->st_stateowner)); file_lock->fl_pid = current->tgid; file_lock->fl_file = filp; file_lock->fl_flags = FL_POSIX; |