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OpenCloudOS-Kernel
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Merge branch 'for-3.14' of git://linux-nfs.org/~bfields/linux 

Pull two nfsd bugfixes from Bruce Fields.

* 'for-3.14' of git://linux-nfs.org/~bfields/linux:
  lockd: send correct lock when granting a delayed lock.
  nfsd4: fix acl buffer overrun
This commit is contained in:
Linus Torvalds 2014-02-14 12:48:46 -08:00
parent bd3813d52d 2ec197db1a
commit 8ba74517e4
2 changed files with 11 additions and 6 deletions
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8
fs/lockd/svclock.c
View File

@ -779,6 +779,7 @@ nlmsvc_grant_blocked(struct nlm_block *block)
struct nlm_file *file = block->b_file;
struct nlm_lock *lock = &block->b_call->a_args.lock;
int error;
loff_t fl_start, fl_end;
dprintk("lockd: grant blocked lock %p\n", block);
@ -796,9 +797,16 @@ nlmsvc_grant_blocked(struct nlm_block *block)
}
/* Try the lock operation again */
/* vfs_lock_file() can mangle fl_start and fl_end, but we need
* them unchanged for the GRANT_MSG
*/
lock->fl.fl_flags |= FL_SLEEP;
fl_start = lock->fl.fl_start;
fl_end = lock->fl.fl_end;
error = vfs_lock_file(file->f_file, F_SETLK, &lock->fl, NULL);
lock->fl.fl_flags &= ~FL_SLEEP;
lock->fl.fl_start = fl_start;
lock->fl.fl_end = fl_end;
switch (error) {
case 0:

9
fs/nfsd/nfs4acl.c
View File

@ -151,17 +151,15 @@ nfsd4_get_nfs4_acl(struct svc_rqst *rqstp, struct dentry *dentry,
pacl = posix_acl_from_mode(inode->i_mode, GFP_KERNEL);
if (IS_ERR(pacl))
return PTR_ERR(pacl);
/* allocate for worst case: one (deny, allow) pair each: */
size += 2 * pacl->a_count;
}
/* allocate for worst case: one (deny, allow) pair each: */
size += 2 * pacl->a_count;
if (S_ISDIR(inode->i_mode)) {
flags = NFS4_ACL_DIR;
dpacl = get_acl(inode, ACL_TYPE_DEFAULT);
if (dpacl)
size += 2 * dpacl->a_count;
} else {
dpacl = NULL;
}
*acl = nfs4_acl_new(size);
@ -170,8 +168,7 @@ nfsd4_get_nfs4_acl(struct svc_rqst *rqstp, struct dentry *dentry,
goto out;
}
if (pacl)
_posix_to_nfsv4_one(pacl, *acl, flags & ~NFS4_ACL_TYPE_DEFAULT);
_posix_to_nfsv4_one(pacl, *acl, flags & ~NFS4_ACL_TYPE_DEFAULT);
if (dpacl)
_posix_to_nfsv4_one(dpacl, *acl, flags | NFS4_ACL_TYPE_DEFAULT);