diff options
author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2011-01-10 14:48:02 -0500 |
---|---|---|
committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2011-01-10 14:48:02 -0500 |
commit | 68c404b18f6fba404b2753622d0459c68ee128ae (patch) | |
tree | c1ec0bb12f19d91071b461cc2831d9d3dd4c74f3 /fs/nfs | |
parent | d035c36c58dd9183ad6aa7875dea89893faedb55 (diff) | |
parent | 6650239a4b01077e80d5a4468562756d77afaa59 (diff) |
Merge branch 'bugfixes' into nfs-for-2.6.38
Conflicts:
fs/nfs/nfs2xdr.c
fs/nfs/nfs3xdr.c
fs/nfs/nfs4xdr.c
Diffstat (limited to 'fs/nfs')
-rw-r--r-- | fs/nfs/dir.c | 44 | ||||
-rw-r--r-- | fs/nfs/nfs2xdr.c | 5 | ||||
-rw-r--r-- | fs/nfs/nfs3xdr.c | 5 | ||||
-rw-r--r-- | fs/nfs/nfs4xdr.c | 6 |
4 files changed, 21 insertions, 39 deletions
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c index 65d5cb4f70b..16ec096f6b2 100644 --- a/fs/nfs/dir.c +++ b/fs/nfs/dir.c @@ -33,7 +33,6 @@ #include <linux/namei.h> #include <linux/mount.h> #include <linux/sched.h> -#include <linux/vmalloc.h> #include <linux/kmemleak.h> #include <linux/xattr.h> @@ -461,25 +460,26 @@ out: /* Perform conversion from xdr to cache array */ static int nfs_readdir_page_filler(nfs_readdir_descriptor_t *desc, struct nfs_entry *entry, - void *xdr_page, struct page *page, unsigned int buflen) + struct page **xdr_pages, struct page *page, unsigned int buflen) { struct xdr_stream stream; - struct xdr_buf buf; - __be32 *ptr = xdr_page; + struct xdr_buf buf = { + .pages = xdr_pages, + .page_len = buflen, + .buflen = buflen, + .len = buflen, + }; + struct page *scratch; struct nfs_cache_array *array; unsigned int count = 0; int status; - buf.head->iov_base = xdr_page; - buf.head->iov_len = buflen; - buf.tail->iov_len = 0; - buf.page_base = 0; - buf.page_len = 0; - buf.buflen = buf.head->iov_len; - buf.len = buf.head->iov_len; - - xdr_init_decode(&stream, &buf, ptr); + scratch = alloc_page(GFP_KERNEL); + if (scratch == NULL) + return -ENOMEM; + xdr_init_decode(&stream, &buf, NULL); + xdr_set_scratch_buffer(&stream, page_address(scratch), PAGE_SIZE); do { status = xdr_decode(desc, entry, &stream); @@ -508,6 +508,8 @@ int nfs_readdir_page_filler(nfs_readdir_descriptor_t *desc, struct nfs_entry *en } else status = PTR_ERR(array); } + + put_page(scratch); return status; } @@ -523,7 +525,6 @@ static void nfs_readdir_free_large_page(void *ptr, struct page **pages, unsigned int npages) { - vm_unmap_ram(ptr, npages); nfs_readdir_free_pagearray(pages, npages); } @@ -532,9 +533,8 @@ void nfs_readdir_free_large_page(void *ptr, struct page **pages, * to nfs_readdir_free_large_page */ static -void *nfs_readdir_large_page(struct page **pages, unsigned int npages) +int nfs_readdir_large_page(struct page **pages, unsigned int npages) { - void *ptr; unsigned int i; for (i = 0; i < npages; i++) { @@ -543,13 +543,11 @@ void *nfs_readdir_large_page(struct page **pages, unsigned int npages) goto out_freepages; pages[i] = page; } + return 0; - ptr = vm_map_ram(pages, npages, 0, PAGE_KERNEL); - if (!IS_ERR_OR_NULL(ptr)) - return ptr; out_freepages: nfs_readdir_free_pagearray(pages, i); - return NULL; + return -ENOMEM; } static @@ -580,8 +578,8 @@ int nfs_readdir_xdr_to_array(nfs_readdir_descriptor_t *desc, struct page *page, memset(array, 0, sizeof(struct nfs_cache_array)); array->eof_index = -1; - pages_ptr = nfs_readdir_large_page(pages, array_size); - if (!pages_ptr) + status = nfs_readdir_large_page(pages, array_size); + if (status < 0) goto out_release_array; do { unsigned int pglen; @@ -590,7 +588,7 @@ int nfs_readdir_xdr_to_array(nfs_readdir_descriptor_t *desc, struct page *page, if (status < 0) break; pglen = status; - status = nfs_readdir_page_filler(desc, &entry, pages_ptr, page, pglen); + status = nfs_readdir_page_filler(desc, &entry, pages, page, pglen); if (status < 0) { if (status == -ENOSPC) status = 0; diff --git a/fs/nfs/nfs2xdr.c b/fs/nfs/nfs2xdr.c index 51f1cfa04d2..792cb13a430 100644 --- a/fs/nfs/nfs2xdr.c +++ b/fs/nfs/nfs2xdr.c @@ -943,11 +943,6 @@ int nfs2_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry, entry->d_type = DT_UNKNOWN; - /* Peek at the next entry to see if we're at EOD */ - p = xdr_inline_peek(xdr, 4 + 4); - entry->eof = 0; - if (p != NULL) - entry->eof = (p[0] == xdr_zero) && (p[1] != xdr_zero); return 0; out_overflow: diff --git a/fs/nfs/nfs3xdr.c b/fs/nfs/nfs3xdr.c index df30a26cc4f..01c5e8b1941 100644 --- a/fs/nfs/nfs3xdr.c +++ b/fs/nfs/nfs3xdr.c @@ -1989,11 +1989,6 @@ int nfs3_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry, zero_nfs_fh3(entry->fh); } - /* Peek at the next entry to see if we're at EOD */ - p = xdr_inline_peek(xdr, 4 + 4); - entry->eof = 0; - if (p != NULL) - entry->eof = (p[0] == xdr_zero) && (p[1] != xdr_zero); return 0; out_overflow: diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c index 8e496887ec6..2ab8e5cb8f5 100644 --- a/fs/nfs/nfs4xdr.c +++ b/fs/nfs/nfs4xdr.c @@ -6135,12 +6135,6 @@ int nfs4_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry, if (verify_attr_len(xdr, p, len) < 0) goto out_overflow; - p = xdr_inline_peek(xdr, 8); - if (p != NULL) - entry->eof = !p[0] && p[1]; - else - entry->eof = 0; - return 0; out_overflow: |