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AFS: AFS fixups

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Make some miscellaneous changes to the AFS filesystem:

 (1) Assert RCU barriers on module exit to make sure RCU has finished with
     callbacks in this module.

 (2) Correctly handle the AFS server returning a zero-length read.

 (3) Split out data zapping calls into one function (afs_zap_data).

 (4) Rename some afs_file_*() functions to afs_*() where they apply to
     non-regular files too.

 (5) Be consistent about the presentation of volume ID:vnode ID in debugging
     output.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
David Howells
2007-05-09 02:33:45 -07:00
committed by Linus Torvalds
parent ef71c15c46
commit 416351f28d
12 changed files with 121 additions and 109 deletions
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12
fs/afs/security.c
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@@ -109,7 +109,7 @@ void afs_clear_permits(struct afs_vnode *vnode)
{
struct afs_permits *permits;
_enter("{%x}", vnode->fid.vnode);
_enter("{%x:%u}", vnode->fid.vid, vnode->fid.vnode);
mutex_lock(&vnode->permits_lock);
permits = vnode->permits;
@@ -132,7 +132,8 @@ void afs_cache_permit(struct afs_vnode *vnode, struct key *key, long acl_order)
struct afs_vnode *auth_vnode;
int count, loop;
_enter("{%x},%x,%lx", vnode->fid.vnode, key_serial(key), acl_order);
_enter("{%x:%u},%x,%lx",
vnode->fid.vid, vnode->fid.vnode, key_serial(key), acl_order);
auth_vnode = afs_get_auth_inode(vnode, key);
if (IS_ERR(auth_vnode)) {
@@ -220,7 +221,8 @@ static int afs_check_permit(struct afs_vnode *vnode, struct key *key,
bool valid;
int loop, ret;
_enter("");
_enter("{%x:%u},%x",
vnode->fid.vid, vnode->fid.vnode, key_serial(key));
auth_vnode = afs_get_auth_inode(vnode, key);
if (IS_ERR(auth_vnode)) {
@@ -268,9 +270,9 @@ static int afs_check_permit(struct afs_vnode *vnode, struct key *key,
_leave(" = %d", ret);
return ret;
}
*_access = vnode->status.caller_access;
}
*_access = vnode->status.caller_access;
iput(&auth_vnode->vfs_inode);
_leave(" = 0 [access %x]", *_access);
return 0;
@@ -288,7 +290,7 @@ int afs_permission(struct inode *inode, int mask, struct nameidata *nd)
struct key *key;
int ret;
_enter("{{%x:%x},%lx},%x,",
_enter("{{%x:%u},%lx},%x,",
vnode->fid.vid, vnode->fid.vnode, vnode->flags, mask);
key = afs_request_key(vnode->volume->cell);