Merge tag 'nfs-for-3.3-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
NFS client bugfixes and cleanups for Linux 3.3 (pull 2)
* tag 'nfs-for-3.3-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
pnfsblock: alloc short extent before submit bio
pnfsblock: remove rpc_call_ops from struct parallel_io
pnfsblock: move find lock page logic out of bl_write_pagelist
pnfsblock: cleanup bl_mark_sectors_init
pnfsblock: limit bio page count
pnfsblock: don't spinlock when freeing block_dev
pnfsblock: clean up _add_entry
pnfsblock: set read/write tk_status to pnfs_error
pnfsblock: acquire im_lock in _preload_range
NFS4: fix compile warnings in nfs4proc.c
nfs: check for integer overflow in decode_devicenotify_args()
NFS: cleanup endian type in decode_ds_addr()
NFS: add an endian notation
diff --git a/fs/nfs/blocklayout/blocklayout.c b/fs/nfs/blocklayout/blocklayout.c
index 281ae95..48cfac3 100644
--- a/fs/nfs/blocklayout/blocklayout.c
+++ b/fs/nfs/blocklayout/blocklayout.c
@@ -90,9 +90,9 @@
*/
struct parallel_io {
struct kref refcnt;
- struct rpc_call_ops call_ops;
- void (*pnfs_callback) (void *data);
+ void (*pnfs_callback) (void *data, int num_se);
void *data;
+ int bse_count;
};
static inline struct parallel_io *alloc_parallel(void *data)
@@ -103,6 +103,7 @@
if (rv) {
rv->data = data;
kref_init(&rv->refcnt);
+ rv->bse_count = 0;
}
return rv;
}
@@ -117,7 +118,7 @@
struct parallel_io *p = container_of(kref, struct parallel_io, refcnt);
dprintk("%s enter\n", __func__);
- p->pnfs_callback(p->data);
+ p->pnfs_callback(p->data, p->bse_count);
kfree(p);
}
@@ -146,14 +147,19 @@
{
struct bio *bio;
+ npg = min(npg, BIO_MAX_PAGES);
bio = bio_alloc(GFP_NOIO, npg);
- if (!bio)
- return NULL;
+ if (!bio && (current->flags & PF_MEMALLOC)) {
+ while (!bio && (npg /= 2))
+ bio = bio_alloc(GFP_NOIO, npg);
+ }
- bio->bi_sector = isect - be->be_f_offset + be->be_v_offset;
- bio->bi_bdev = be->be_mdev;
- bio->bi_end_io = end_io;
- bio->bi_private = par;
+ if (bio) {
+ bio->bi_sector = isect - be->be_f_offset + be->be_v_offset;
+ bio->bi_bdev = be->be_mdev;
+ bio->bi_end_io = end_io;
+ bio->bi_private = par;
+ }
return bio;
}
@@ -212,22 +218,15 @@
}
static void
-bl_end_par_io_read(void *data)
+bl_end_par_io_read(void *data, int unused)
{
struct nfs_read_data *rdata = data;
+ rdata->task.tk_status = rdata->pnfs_error;
INIT_WORK(&rdata->task.u.tk_work, bl_read_cleanup);
schedule_work(&rdata->task.u.tk_work);
}
-/* We don't want normal .rpc_call_done callback used, so we replace it
- * with this stub.
- */
-static void bl_rpc_do_nothing(struct rpc_task *task, void *calldata)
-{
- return;
-}
-
static enum pnfs_try_status
bl_read_pagelist(struct nfs_read_data *rdata)
{
@@ -247,8 +246,6 @@
par = alloc_parallel(rdata);
if (!par)
goto use_mds;
- par->call_ops = *rdata->mds_ops;
- par->call_ops.rpc_call_done = bl_rpc_do_nothing;
par->pnfs_callback = bl_end_par_io_read;
/* At this point, we can no longer jump to use_mds */
@@ -322,6 +319,7 @@
{
sector_t isect, end;
struct pnfs_block_extent *be;
+ struct pnfs_block_short_extent *se;
dprintk("%s(%llu, %u)\n", __func__, offset, count);
if (count == 0)
@@ -334,8 +332,11 @@
be = bl_find_get_extent(bl, isect, NULL);
BUG_ON(!be); /* FIXME */
len = min(end, be->be_f_offset + be->be_length) - isect;
- if (be->be_state == PNFS_BLOCK_INVALID_DATA)
- bl_mark_for_commit(be, isect, len); /* What if fails? */
+ if (be->be_state == PNFS_BLOCK_INVALID_DATA) {
+ se = bl_pop_one_short_extent(be->be_inval);
+ BUG_ON(!se);
+ bl_mark_for_commit(be, isect, len, se);
+ }
isect += len;
bl_put_extent(be);
}
@@ -357,7 +358,8 @@
end_page_writeback(page);
page_cache_release(page);
} while (bvec >= bio->bi_io_vec);
- if (!uptodate) {
+
+ if (unlikely(!uptodate)) {
if (!wdata->pnfs_error)
wdata->pnfs_error = -EIO;
pnfs_set_lo_fail(wdata->lseg);
@@ -366,7 +368,6 @@
put_parallel(par);
}
-/* This is basically copied from mpage_end_io_read */
static void bl_end_io_write(struct bio *bio, int err)
{
struct parallel_io *par = bio->bi_private;
@@ -392,7 +393,7 @@
dprintk("%s enter\n", __func__);
task = container_of(work, struct rpc_task, u.tk_work);
wdata = container_of(task, struct nfs_write_data, task);
- if (!wdata->pnfs_error) {
+ if (likely(!wdata->pnfs_error)) {
/* Marks for LAYOUTCOMMIT */
mark_extents_written(BLK_LSEG2EXT(wdata->lseg),
wdata->args.offset, wdata->args.count);
@@ -401,11 +402,16 @@
}
/* Called when last of bios associated with a bl_write_pagelist call finishes */
-static void bl_end_par_io_write(void *data)
+static void bl_end_par_io_write(void *data, int num_se)
{
struct nfs_write_data *wdata = data;
- wdata->task.tk_status = 0;
+ if (unlikely(wdata->pnfs_error)) {
+ bl_free_short_extents(&BLK_LSEG2EXT(wdata->lseg)->bl_inval,
+ num_se);
+ }
+
+ wdata->task.tk_status = wdata->pnfs_error;
wdata->verf.committed = NFS_FILE_SYNC;
INIT_WORK(&wdata->task.u.tk_work, bl_write_cleanup);
schedule_work(&wdata->task.u.tk_work);
@@ -484,6 +490,55 @@
return ret;
}
+/* Find or create a zeroing page marked being writeback.
+ * Return ERR_PTR on error, NULL to indicate skip this page and page itself
+ * to indicate write out.
+ */
+static struct page *
+bl_find_get_zeroing_page(struct inode *inode, pgoff_t index,
+ struct pnfs_block_extent *cow_read)
+{
+ struct page *page;
+ int locked = 0;
+ page = find_get_page(inode->i_mapping, index);
+ if (page)
+ goto check_page;
+
+ page = find_or_create_page(inode->i_mapping, index, GFP_NOFS);
+ if (unlikely(!page)) {
+ dprintk("%s oom\n", __func__);
+ return ERR_PTR(-ENOMEM);
+ }
+ locked = 1;
+
+check_page:
+ /* PageDirty: Other will write this out
+ * PageWriteback: Other is writing this out
+ * PageUptodate: It was read before
+ */
+ if (PageDirty(page) || PageWriteback(page)) {
+ print_page(page);
+ if (locked)
+ unlock_page(page);
+ page_cache_release(page);
+ return NULL;
+ }
+
+ if (!locked) {
+ lock_page(page);
+ locked = 1;
+ goto check_page;
+ }
+ if (!PageUptodate(page)) {
+ /* New page, readin or zero it */
+ init_page_for_write(page, cow_read);
+ }
+ set_page_writeback(page);
+ unlock_page(page);
+
+ return page;
+}
+
static enum pnfs_try_status
bl_write_pagelist(struct nfs_write_data *wdata, int sync)
{
@@ -508,9 +563,7 @@
*/
par = alloc_parallel(wdata);
if (!par)
- return PNFS_NOT_ATTEMPTED;
- par->call_ops = *wdata->mds_ops;
- par->call_ops.rpc_call_done = bl_rpc_do_nothing;
+ goto out_mds;
par->pnfs_callback = bl_end_par_io_write;
/* At this point, have to be more careful with error handling */
@@ -518,12 +571,15 @@
be = bl_find_get_extent(BLK_LSEG2EXT(wdata->lseg), isect, &cow_read);
if (!be || !is_writable(be, isect)) {
dprintk("%s no matching extents!\n", __func__);
- wdata->pnfs_error = -EINVAL;
- goto out;
+ goto out_mds;
}
/* First page inside INVALID extent */
if (be->be_state == PNFS_BLOCK_INVALID_DATA) {
+ if (likely(!bl_push_one_short_extent(be->be_inval)))
+ par->bse_count++;
+ else
+ goto out_mds;
temp = offset >> PAGE_CACHE_SHIFT;
npg_zero = do_div(temp, npg_per_block);
isect = (sector_t) (((offset - npg_zero * PAGE_CACHE_SIZE) &
@@ -543,36 +599,16 @@
dprintk("%s zero %dth page: index %lu isect %llu\n",
__func__, npg_zero, index,
(unsigned long long)isect);
- page =
- find_or_create_page(wdata->inode->i_mapping, index,
- GFP_NOFS);
- if (!page) {
- dprintk("%s oom\n", __func__);
- wdata->pnfs_error = -ENOMEM;
+ page = bl_find_get_zeroing_page(wdata->inode, index,
+ cow_read);
+ if (unlikely(IS_ERR(page))) {
+ wdata->pnfs_error = PTR_ERR(page);
goto out;
- }
-
- /* PageDirty: Other will write this out
- * PageWriteback: Other is writing this out
- * PageUptodate: It was read before
- * sector_initialized: already written out
- */
- if (PageDirty(page) || PageWriteback(page)) {
- print_page(page);
- unlock_page(page);
- page_cache_release(page);
+ } else if (page == NULL)
goto next_page;
- }
- if (!PageUptodate(page)) {
- /* New page, readin or zero it */
- init_page_for_write(page, cow_read);
- }
- set_page_writeback(page);
- unlock_page(page);
ret = bl_mark_sectors_init(be->be_inval, isect,
- PAGE_CACHE_SECTORS,
- NULL);
+ PAGE_CACHE_SECTORS);
if (unlikely(ret)) {
dprintk("%s bl_mark_sectors_init fail %d\n",
__func__, ret);
@@ -581,6 +617,19 @@
wdata->pnfs_error = ret;
goto out;
}
+ if (likely(!bl_push_one_short_extent(be->be_inval)))
+ par->bse_count++;
+ else {
+ end_page_writeback(page);
+ page_cache_release(page);
+ wdata->pnfs_error = -ENOMEM;
+ goto out;
+ }
+ /* FIXME: This should be done in bi_end_io */
+ mark_extents_written(BLK_LSEG2EXT(wdata->lseg),
+ page->index << PAGE_CACHE_SHIFT,
+ PAGE_CACHE_SIZE);
+
bio = bl_add_page_to_bio(bio, npg_zero, WRITE,
isect, page, be,
bl_end_io_write_zero, par);
@@ -589,10 +638,6 @@
bio = NULL;
goto out;
}
- /* FIXME: This should be done in bi_end_io */
- mark_extents_written(BLK_LSEG2EXT(wdata->lseg),
- page->index << PAGE_CACHE_SHIFT,
- PAGE_CACHE_SIZE);
next_page:
isect += PAGE_CACHE_SECTORS;
extent_length -= PAGE_CACHE_SECTORS;
@@ -616,13 +661,21 @@
wdata->pnfs_error = -EINVAL;
goto out;
}
+ if (be->be_state == PNFS_BLOCK_INVALID_DATA) {
+ if (likely(!bl_push_one_short_extent(
+ be->be_inval)))
+ par->bse_count++;
+ else {
+ wdata->pnfs_error = -ENOMEM;
+ goto out;
+ }
+ }
extent_length = be->be_length -
(isect - be->be_f_offset);
}
if (be->be_state == PNFS_BLOCK_INVALID_DATA) {
ret = bl_mark_sectors_init(be->be_inval, isect,
- PAGE_CACHE_SECTORS,
- NULL);
+ PAGE_CACHE_SECTORS);
if (unlikely(ret)) {
dprintk("%s bl_mark_sectors_init fail %d\n",
__func__, ret);
@@ -664,6 +717,10 @@
bl_submit_bio(WRITE, bio);
put_parallel(par);
return PNFS_ATTEMPTED;
+out_mds:
+ bl_put_extent(be);
+ kfree(par);
+ return PNFS_NOT_ATTEMPTED;
}
/* FIXME - range ignored */
@@ -690,11 +747,17 @@
release_inval_marks(struct pnfs_inval_markings *marks)
{
struct pnfs_inval_tracking *pos, *temp;
+ struct pnfs_block_short_extent *se, *stemp;
list_for_each_entry_safe(pos, temp, &marks->im_tree.mtt_stub, it_link) {
list_del(&pos->it_link);
kfree(pos);
}
+
+ list_for_each_entry_safe(se, stemp, &marks->im_extents, bse_node) {
+ list_del(&se->bse_node);
+ kfree(se);
+ }
return;
}
@@ -779,16 +842,13 @@
static void free_blk_mountid(struct block_mount_id *mid)
{
if (mid) {
- struct pnfs_block_dev *dev;
- spin_lock(&mid->bm_lock);
- while (!list_empty(&mid->bm_devlist)) {
- dev = list_first_entry(&mid->bm_devlist,
- struct pnfs_block_dev,
- bm_node);
+ struct pnfs_block_dev *dev, *tmp;
+
+ /* No need to take bm_lock as we are last user freeing bm_devlist */
+ list_for_each_entry_safe(dev, tmp, &mid->bm_devlist, bm_node) {
list_del(&dev->bm_node);
bl_free_block_dev(dev);
}
- spin_unlock(&mid->bm_lock);
kfree(mid);
}
}
diff --git a/fs/nfs/blocklayout/blocklayout.h b/fs/nfs/blocklayout/blocklayout.h
index 42acf7e..e31a2df 100644
--- a/fs/nfs/blocklayout/blocklayout.h
+++ b/fs/nfs/blocklayout/blocklayout.h
@@ -70,6 +70,7 @@
spinlock_t im_lock;
struct my_tree im_tree; /* Sectors that need LAYOUTCOMMIT */
sector_t im_block_size; /* Server blocksize in sectors */
+ struct list_head im_extents; /* Short extents for INVAL->RW conversion */
};
struct pnfs_inval_tracking {
@@ -105,6 +106,7 @@
{
spin_lock_init(&marks->im_lock);
INIT_LIST_HEAD(&marks->im_tree.mtt_stub);
+ INIT_LIST_HEAD(&marks->im_extents);
marks->im_block_size = blocksize;
marks->im_tree.mtt_step_size = min((sector_t)PAGE_CACHE_SECTORS,
blocksize);
@@ -186,8 +188,7 @@
bl_find_get_extent(struct pnfs_block_layout *bl, sector_t isect,
struct pnfs_block_extent **cow_read);
int bl_mark_sectors_init(struct pnfs_inval_markings *marks,
- sector_t offset, sector_t length,
- sector_t **pages);
+ sector_t offset, sector_t length);
void bl_put_extent(struct pnfs_block_extent *be);
struct pnfs_block_extent *bl_alloc_extent(void);
int bl_is_sector_init(struct pnfs_inval_markings *marks, sector_t isect);
@@ -200,6 +201,11 @@
int bl_add_merge_extent(struct pnfs_block_layout *bl,
struct pnfs_block_extent *new);
int bl_mark_for_commit(struct pnfs_block_extent *be,
- sector_t offset, sector_t length);
+ sector_t offset, sector_t length,
+ struct pnfs_block_short_extent *new);
+int bl_push_one_short_extent(struct pnfs_inval_markings *marks);
+struct pnfs_block_short_extent *
+bl_pop_one_short_extent(struct pnfs_inval_markings *marks);
+void bl_free_short_extents(struct pnfs_inval_markings *marks, int num_to_free);
#endif /* FS_NFS_NFS4BLOCKLAYOUT_H */
diff --git a/fs/nfs/blocklayout/extents.c b/fs/nfs/blocklayout/extents.c
index 19fa7b0..1abac09 100644
--- a/fs/nfs/blocklayout/extents.c
+++ b/fs/nfs/blocklayout/extents.c
@@ -110,13 +110,7 @@
return 0;
} else {
struct pnfs_inval_tracking *new;
- if (storage)
- new = storage;
- else {
- new = kmalloc(sizeof(*new), GFP_NOFS);
- if (!new)
- return -ENOMEM;
- }
+ new = storage;
new->it_sector = s;
new->it_tags = (1 << tag);
list_add(&new->it_link, &pos->it_link);
@@ -139,11 +133,13 @@
}
/* Ensure that future operations on given range of tree will not malloc */
-static int _preload_range(struct my_tree *tree, u64 offset, u64 length)
+static int _preload_range(struct pnfs_inval_markings *marks,
+ u64 offset, u64 length)
{
u64 start, end, s;
int count, i, used = 0, status = -ENOMEM;
struct pnfs_inval_tracking **storage;
+ struct my_tree *tree = &marks->im_tree;
dprintk("%s(%llu, %llu) enter\n", __func__, offset, length);
start = normalize(offset, tree->mtt_step_size);
@@ -161,12 +157,11 @@
goto out_cleanup;
}
- /* Now need lock - HOW??? */
-
+ spin_lock_bh(&marks->im_lock);
for (s = start; s < end; s += tree->mtt_step_size)
used += _add_entry(tree, s, INTERNAL_EXISTS, storage[used]);
+ spin_unlock_bh(&marks->im_lock);
- /* Unlock - HOW??? */
status = 0;
out_cleanup:
@@ -179,41 +174,14 @@
return status;
}
-static void set_needs_init(sector_t *array, sector_t offset)
-{
- sector_t *p = array;
-
- dprintk("%s enter\n", __func__);
- if (!p)
- return;
- while (*p < offset)
- p++;
- if (*p == offset)
- return;
- else if (*p == ~0) {
- *p++ = offset;
- *p = ~0;
- return;
- } else {
- sector_t *save = p;
- dprintk("%s Adding %llu\n", __func__, (u64)offset);
- while (*p != ~0)
- p++;
- p++;
- memmove(save + 1, save, (char *)p - (char *)save);
- *save = offset;
- return;
- }
-}
-
/* We are relying on page lock to serialize this */
int bl_is_sector_init(struct pnfs_inval_markings *marks, sector_t isect)
{
int rv;
- spin_lock(&marks->im_lock);
+ spin_lock_bh(&marks->im_lock);
rv = _has_tag(&marks->im_tree, isect, EXTENT_INITIALIZED);
- spin_unlock(&marks->im_lock);
+ spin_unlock_bh(&marks->im_lock);
return rv;
}
@@ -253,78 +221,39 @@
{
int rv;
- spin_lock(&marks->im_lock);
+ spin_lock_bh(&marks->im_lock);
rv = _range_has_tag(&marks->im_tree, start, end, EXTENT_WRITTEN);
- spin_unlock(&marks->im_lock);
+ spin_unlock_bh(&marks->im_lock);
return rv;
}
/* Marks sectors in [offest, offset_length) as having been initialized.
* All lengths are step-aligned, where step is min(pagesize, blocksize).
- * Notes where partial block is initialized, and helps prepare it for
- * complete initialization later.
+ * Currently assumes offset is page-aligned
*/
-/* Currently assumes offset is page-aligned */
int bl_mark_sectors_init(struct pnfs_inval_markings *marks,
- sector_t offset, sector_t length,
- sector_t **pages)
+ sector_t offset, sector_t length)
{
- sector_t s, start, end;
- sector_t *array = NULL; /* Pages to mark */
+ sector_t start, end;
dprintk("%s(offset=%llu,len=%llu) enter\n",
__func__, (u64)offset, (u64)length);
- s = max((sector_t) 3,
- 2 * (marks->im_block_size / (PAGE_CACHE_SECTORS)));
- dprintk("%s set max=%llu\n", __func__, (u64)s);
- if (pages) {
- array = kmalloc(s * sizeof(sector_t), GFP_NOFS);
- if (!array)
- goto outerr;
- array[0] = ~0;
- }
start = normalize(offset, marks->im_block_size);
end = normalize_up(offset + length, marks->im_block_size);
- if (_preload_range(&marks->im_tree, start, end - start))
+ if (_preload_range(marks, start, end - start))
goto outerr;
- spin_lock(&marks->im_lock);
-
- for (s = normalize_up(start, PAGE_CACHE_SECTORS);
- s < offset; s += PAGE_CACHE_SECTORS) {
- dprintk("%s pre-area pages\n", __func__);
- /* Portion of used block is not initialized */
- if (!_has_tag(&marks->im_tree, s, EXTENT_INITIALIZED))
- set_needs_init(array, s);
- }
+ spin_lock_bh(&marks->im_lock);
if (_set_range(&marks->im_tree, EXTENT_INITIALIZED, offset, length))
goto out_unlock;
- for (s = normalize_up(offset + length, PAGE_CACHE_SECTORS);
- s < end; s += PAGE_CACHE_SECTORS) {
- dprintk("%s post-area pages\n", __func__);
- if (!_has_tag(&marks->im_tree, s, EXTENT_INITIALIZED))
- set_needs_init(array, s);
- }
+ spin_unlock_bh(&marks->im_lock);
- spin_unlock(&marks->im_lock);
-
- if (pages) {
- if (array[0] == ~0) {
- kfree(array);
- *pages = NULL;
- } else
- *pages = array;
- }
return 0;
- out_unlock:
- spin_unlock(&marks->im_lock);
- outerr:
- if (pages) {
- kfree(array);
- *pages = NULL;
- }
+out_unlock:
+ spin_unlock_bh(&marks->im_lock);
+outerr:
return -ENOMEM;
}
@@ -338,9 +267,9 @@
dprintk("%s(offset=%llu,len=%llu) enter\n", __func__,
(u64)offset, (u64)length);
- spin_lock(&marks->im_lock);
+ spin_lock_bh(&marks->im_lock);
status = _set_range(&marks->im_tree, EXTENT_WRITTEN, offset, length);
- spin_unlock(&marks->im_lock);
+ spin_unlock_bh(&marks->im_lock);
return status;
}
@@ -440,20 +369,18 @@
/* Note the range described by offset, length is guaranteed to be contained
* within be.
+ * new will be freed, either by this function or add_to_commitlist if they
+ * decide not to use it, or after LAYOUTCOMMIT uses it in the commitlist.
*/
int bl_mark_for_commit(struct pnfs_block_extent *be,
- sector_t offset, sector_t length)
+ sector_t offset, sector_t length,
+ struct pnfs_block_short_extent *new)
{
sector_t new_end, end = offset + length;
- struct pnfs_block_short_extent *new;
struct pnfs_block_layout *bl = container_of(be->be_inval,
struct pnfs_block_layout,
bl_inval);
- new = kmalloc(sizeof(*new), GFP_NOFS);
- if (!new)
- return -ENOMEM;
-
mark_written_sectors(be->be_inval, offset, length);
/* We want to add the range to commit list, but it must be
* block-normalized, and verified that the normalized range has
@@ -483,9 +410,6 @@
new->bse_mdev = be->be_mdev;
spin_lock(&bl->bl_ext_lock);
- /* new will be freed, either by add_to_commitlist if it decides not
- * to use it, or after LAYOUTCOMMIT uses it in the commitlist.
- */
add_to_commitlist(bl, new);
spin_unlock(&bl->bl_ext_lock);
return 0;
@@ -933,3 +857,53 @@
}
}
}
+
+int bl_push_one_short_extent(struct pnfs_inval_markings *marks)
+{
+ struct pnfs_block_short_extent *new;
+
+ new = kmalloc(sizeof(*new), GFP_NOFS);
+ if (unlikely(!new))
+ return -ENOMEM;
+
+ spin_lock_bh(&marks->im_lock);
+ list_add(&new->bse_node, &marks->im_extents);
+ spin_unlock_bh(&marks->im_lock);
+
+ return 0;
+}
+
+struct pnfs_block_short_extent *
+bl_pop_one_short_extent(struct pnfs_inval_markings *marks)
+{
+ struct pnfs_block_short_extent *rv = NULL;
+
+ spin_lock_bh(&marks->im_lock);
+ if (!list_empty(&marks->im_extents)) {
+ rv = list_entry((&marks->im_extents)->next,
+ struct pnfs_block_short_extent, bse_node);
+ list_del_init(&rv->bse_node);
+ }
+ spin_unlock_bh(&marks->im_lock);
+
+ return rv;
+}
+
+void bl_free_short_extents(struct pnfs_inval_markings *marks, int num_to_free)
+{
+ struct pnfs_block_short_extent *se = NULL, *tmp;
+
+ if (num_to_free <= 0)
+ return;
+
+ spin_lock(&marks->im_lock);
+ list_for_each_entry_safe(se, tmp, &marks->im_extents, bse_node) {
+ list_del(&se->bse_node);
+ kfree(se);
+ if (--num_to_free == 0)
+ break;
+ }
+ spin_unlock(&marks->im_lock);
+
+ BUG_ON(num_to_free > 0);
+}
diff --git a/fs/nfs/callback.h b/fs/nfs/callback.h
index 07df5f1..c89d3b9 100644
--- a/fs/nfs/callback.h
+++ b/fs/nfs/callback.h
@@ -162,7 +162,7 @@
};
};
-extern unsigned nfs4_callback_layoutrecall(
+extern __be32 nfs4_callback_layoutrecall(
struct cb_layoutrecallargs *args,
void *dummy, struct cb_process_state *cps);
diff --git a/fs/nfs/callback_xdr.c b/fs/nfs/callback_xdr.c
index 726e59a..d50b274 100644
--- a/fs/nfs/callback_xdr.c
+++ b/fs/nfs/callback_xdr.c
@@ -305,6 +305,10 @@
n = ntohl(*p++);
if (n <= 0)
goto out;
+ if (n > ULONG_MAX / sizeof(*args->devs)) {
+ status = htonl(NFS4ERR_BADXDR);
+ goto out;
+ }
args->devs = kmalloc(n * sizeof(*args->devs), GFP_KERNEL);
if (!args->devs) {
diff --git a/fs/nfs/nfs4filelayoutdev.c b/fs/nfs/nfs4filelayoutdev.c
index ed388aa..8ae9190 100644
--- a/fs/nfs/nfs4filelayoutdev.c
+++ b/fs/nfs/nfs4filelayoutdev.c
@@ -382,7 +382,7 @@
{
struct nfs4_pnfs_ds_addr *da = NULL;
char *buf, *portstr;
- u32 port;
+ __be16 port;
int nlen, rlen;
int tmp[2];
__be32 *p;
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 75366dc..f0c849c 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -3587,7 +3587,7 @@
res.acl_flags |= NFS4_ACL_LEN_REQUEST;
resp_buf = page_address(pages[0]);
- dprintk("%s buf %p buflen %ld npages %d args.acl_len %ld\n",
+ dprintk("%s buf %p buflen %zu npages %d args.acl_len %zu\n",
__func__, buf, buflen, npages, args.acl_len);
ret = nfs4_call_sync(NFS_SERVER(inode)->client, NFS_SERVER(inode),
&msg, &args.seq_args, &res.seq_res, 0);
