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authorDavid Howells <dhowells@redhat.com>2019-05-09 16:17:05 +0100
committerDavid Howells <dhowells@redhat.com>2019-05-16 16:25:21 +0100
commit87182759cd6f94875d6aaaac74eaa52aa6aa6f98 (patch)
tree3a143ae4a411fd26b1d98bffff3f66770e027901 /fs/afs/internal.h
parentffba718e935402e7f42b8cd5d1e00e4a3907d361 (diff)
downloadlinux-87182759cd6f94875d6aaaac74eaa52aa6aa6f98.tar.bz2
afs: Fix order-1 allocation in afs_do_lookup()
afs_do_lookup() will do an order-1 allocation to allocate status records if there are more than 39 vnodes to stat. Fix this by allocating an array of {status,callback} records for each vnode we want to examine using vmalloc() if larger than a page. This not only gets rid of the order-1 allocation, but makes it easier to grow beyond 50 records for YFS servers. It also allows us to move to {status,callback} tuples for other calls too and makes it easier to lock across the application of the status and the callback to the vnode. Fixes: 5cf9dd55a0ec ("afs: Prospectively look up extra files when doing a single lookup") Signed-off-by: David Howells <dhowells@redhat.com>
Diffstat (limited to 'fs/afs/internal.h')
-rw-r--r--fs/afs/internal.h11
1 files changed, 5 insertions, 6 deletions
diff --git a/fs/afs/internal.h b/fs/afs/internal.h
index 705833eb2d45..2a100be91721 100644
--- a/fs/afs/internal.h
+++ b/fs/afs/internal.h
@@ -137,6 +137,7 @@ struct afs_call {
struct afs_file_status *out_vnode_status;
struct afs_file_status *out_extra_status;
struct afs_callback *out_cb;
+ struct afs_status_cb *out_scb;
struct yfs_acl *out_yacl;
struct afs_volsync *out_volsync;
struct afs_volume_status *out_volstatus;
@@ -991,9 +992,8 @@ extern struct afs_call *afs_fs_get_capabilities(struct afs_net *, struct afs_ser
struct afs_addr_cursor *, struct key *,
unsigned int);
extern int afs_fs_inline_bulk_status(struct afs_fs_cursor *, struct afs_net *,
- struct afs_fid *, struct afs_file_status *,
- struct afs_callback *, unsigned int,
- struct afs_volsync *);
+ struct afs_fid *, struct afs_status_cb *,
+ unsigned int, struct afs_volsync *);
extern int afs_fs_fetch_status(struct afs_fs_cursor *, struct afs_net *,
struct afs_fid *, struct afs_file_status *,
struct afs_callback *, struct afs_volsync *);
@@ -1393,9 +1393,8 @@ extern int yfs_fs_fetch_status(struct afs_fs_cursor *, struct afs_net *,
struct afs_fid *, struct afs_file_status *,
struct afs_callback *, struct afs_volsync *);
extern int yfs_fs_inline_bulk_status(struct afs_fs_cursor *, struct afs_net *,
- struct afs_fid *, struct afs_file_status *,
- struct afs_callback *, unsigned int,
- struct afs_volsync *);
+ struct afs_fid *, struct afs_status_cb *,
+ unsigned int, struct afs_volsync *);
struct yfs_acl {
struct afs_acl *acl; /* Dir/file/symlink ACL */