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| author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2009-03-10 20:33:18 -0400 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2009-03-10 20:33:18 -0400 |
| commit | ae46141ff08f1965b17c531b571953c39ce8b9e2 (patch) | |
| tree | 12e9b19461fb00c7ba21d93272ddd470ca0e82b0 /include | |
| parent | ef95d31e6de6be9602ce950b85fb7ab8af46ae42 (diff) | |
| download | linux-3.10-ae46141ff08f1965b17c531b571953c39ce8b9e2.tar.gz linux-3.10-ae46141ff08f1965b17c531b571953c39ce8b9e2.tar.bz2 linux-3.10-ae46141ff08f1965b17c531b571953c39ce8b9e2.zip | |
NFSv3: Fix posix ACL code
Fix a memory leak due to allocation in the XDR layer. In cases where the
RPC call needs to be retransmitted, we end up allocating new pages without
clearing the old ones. Fix this by moving the allocation into
nfs3_proc_setacls().
Also fix an issue discovered by Kevin Rudd, whereby the amount of memory
reserved for the acls in the xdr_buf->head was miscalculated, and causing
corruption.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/nfs_xdr.h | 2 | ||||
| -rw-r--r-- | include/linux/nfsacl.h | 3 |
2 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h index a550b528319..2e5f00066af 100644 --- a/include/linux/nfs_xdr.h +++ b/include/linux/nfs_xdr.h @@ -406,6 +406,8 @@ struct nfs3_setaclargs { int mask; struct posix_acl * acl_access; struct posix_acl * acl_default; + size_t len; + unsigned int npages; struct page ** pages; }; diff --git a/include/linux/nfsacl.h b/include/linux/nfsacl.h index 54487a99beb..43011b69297 100644 --- a/include/linux/nfsacl.h +++ b/include/linux/nfsacl.h @@ -37,6 +37,9 @@ #define NFSACL_MAXPAGES ((2*(8+12*NFS_ACL_MAX_ENTRIES) + PAGE_SIZE-1) \ >> PAGE_SHIFT) +#define NFS_ACL_MAX_ENTRIES_INLINE (5) +#define NFS_ACL_INLINE_BUFSIZE ((2*(2+3*NFS_ACL_MAX_ENTRIES_INLINE)) << 2) + static inline unsigned int nfsacl_size(struct posix_acl *acl_access, struct posix_acl *acl_default) { |