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| author | Felix Blyakher <felixb@sgi.com> | 2008-02-26 10:54:36 -0800 |
|---|---|---|
| committer | J. Bruce Fields <bfields@citi.umich.edu> | 2008-04-23 16:13:40 -0400 |
| commit | 9167f501c6b53492eb2566dd618ce7f55f2856d5 (patch) | |
| tree | 41a39a802a0c6c848bfc7d9b322dbf83ab63fcdb | |
| parent | a3fa73bd0eea74c58315114c9fc3e913f6c26d61 (diff) | |
| download | linux-3.10-9167f501c6b53492eb2566dd618ce7f55f2856d5.tar.gz linux-3.10-9167f501c6b53492eb2566dd618ce7f55f2856d5.tar.bz2 linux-3.10-9167f501c6b53492eb2566dd618ce7f55f2856d5.zip | |
nfsd: initialize lease type in nfs4_open_delegation()
While lease is correctly checked by supplying the type argument to
vfs_setlease(), it's stored with fl_type uninitialized. This breaks the
logic when checking the type of the lease. The fix is to initialize
fl_type.
The old code still happened to function correctly since F_RDLCK is zero,
and we only implement read delegations currently (nor write
delegations). But that's no excuse for not fixing this.
Signed-off-by: Felix Blyakher <felixb@sgi.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
| -rw-r--r-- | fs/nfsd/nfs4state.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index 8235d315cd6..55dfdd71f1b 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -1639,6 +1639,7 @@ nfs4_open_delegation(struct svc_fh *fh, struct nfsd4_open *open, struct nfs4_sta locks_init_lock(&fl); fl.fl_lmops = &nfsd_lease_mng_ops; fl.fl_flags = FL_LEASE; + fl.fl_type = flag == NFS4_OPEN_DELEGATE_READ? F_RDLCK: F_WRLCK; fl.fl_end = OFFSET_MAX; fl.fl_owner = (fl_owner_t)dp; fl.fl_file = stp->st_vfs_file; @@ -1647,8 +1648,7 @@ nfs4_open_delegation(struct svc_fh *fh, struct nfsd4_open *open, struct nfs4_sta /* vfs_setlease checks to see if delegation should be handed out. * the lock_manager callbacks fl_mylease and fl_change are used */ - if ((status = vfs_setlease(stp->st_vfs_file, - flag == NFS4_OPEN_DELEGATE_READ? F_RDLCK: F_WRLCK, &flp))) { + if ((status = vfs_setlease(stp->st_vfs_file, fl.fl_type, &flp))) { dprintk("NFSD: setlease failed [%d], no delegation\n", status); unhash_delegation(dp); flag = NFS4_OPEN_DELEGATE_NONE; |