aboutsummaryrefslogtreecommitdiff
path: root/drivers/md
diff options
context:
space:
mode:
authorMikulas Patocka <mpatocka@redhat.com>2019-04-29 14:57:20 +0200
committerMike Snitzer <snitzer@redhat.com>2019-05-07 16:05:12 -0400
commitd5027e0345c2f014e1328b53e8d86a293edf1caf (patch)
tree644919ab1fded09c340808a3c27d77839625db2e /drivers/md
parent981e8a980dc25a980188b157988d8651c03adc5c (diff)
downloadlinux-d5027e0345c2f014e1328b53e8d86a293edf1caf.tar.gz
dm ingerity: pass size to dm_integrity_alloc_page_list()
Pass size to dm_integrity_alloc_page_list(). This is needed so following commits can pass a size that is different from ic->journal_pages. Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'drivers/md')
-rw-r--r--drivers/md/dm-integrity.c30
1 files changed, 15 insertions, 15 deletions
diff --git a/drivers/md/dm-integrity.c b/drivers/md/dm-integrity.c
index 8bc1849a6c8d..ffd0d156c24e 100644
--- a/drivers/md/dm-integrity.c
+++ b/drivers/md/dm-integrity.c
@@ -2677,37 +2677,37 @@ static void dm_integrity_set(struct dm_target *ti, struct dm_integrity_c *ic)
blk_queue_max_integrity_segments(disk->queue, UINT_MAX);
}
-static void dm_integrity_free_page_list(struct dm_integrity_c *ic, struct page_list *pl)
+static void dm_integrity_free_page_list(struct page_list *pl)
{
unsigned i;
if (!pl)
return;
- for (i = 0; i < ic->journal_pages; i++)
- if (pl[i].page)
- __free_page(pl[i].page);
+ for (i = 0; pl[i].page; i++)
+ __free_page(pl[i].page);
kvfree(pl);
}
-static struct page_list *dm_integrity_alloc_page_list(struct dm_integrity_c *ic)
+static struct page_list *dm_integrity_alloc_page_list(unsigned n_pages)
{
- size_t page_list_desc_size = ic->journal_pages * sizeof(struct page_list);
struct page_list *pl;
unsigned i;
- pl = kvmalloc(page_list_desc_size, GFP_KERNEL | __GFP_ZERO);
+ pl = kvmalloc_array(n_pages + 1, sizeof(struct page_list), GFP_KERNEL | __GFP_ZERO);
if (!pl)
return NULL;
- for (i = 0; i < ic->journal_pages; i++) {
+ for (i = 0; i < n_pages; i++) {
pl[i].page = alloc_page(GFP_KERNEL);
if (!pl[i].page) {
- dm_integrity_free_page_list(ic, pl);
+ dm_integrity_free_page_list(pl);
return NULL;
}
if (i)
pl[i - 1].next = &pl[i];
}
+ pl[i].page = NULL;
+ pl[i].next = NULL;
return pl;
}
@@ -2860,7 +2860,7 @@ static int create_journal(struct dm_integrity_c *ic, char **error)
}
ic->journal_pages = journal_pages;
- ic->journal = dm_integrity_alloc_page_list(ic);
+ ic->journal = dm_integrity_alloc_page_list(ic->journal_pages);
if (!ic->journal) {
*error = "Could not allocate memory for journal";
r = -ENOMEM;
@@ -2892,7 +2892,7 @@ static int create_journal(struct dm_integrity_c *ic, char **error)
DEBUG_print("cipher %s, block size %u iv size %u\n",
ic->journal_crypt_alg.alg_string, blocksize, ivsize);
- ic->journal_io = dm_integrity_alloc_page_list(ic);
+ ic->journal_io = dm_integrity_alloc_page_list(ic->journal_pages);
if (!ic->journal_io) {
*error = "Could not allocate memory for journal io";
r = -ENOMEM;
@@ -2916,7 +2916,7 @@ static int create_journal(struct dm_integrity_c *ic, char **error)
goto bad;
}
- ic->journal_xor = dm_integrity_alloc_page_list(ic);
+ ic->journal_xor = dm_integrity_alloc_page_list(ic->journal_pages);
if (!ic->journal_xor) {
*error = "Could not allocate memory for journal xor";
r = -ENOMEM;
@@ -3573,9 +3573,9 @@ static void dm_integrity_dtr(struct dm_target *ti)
dm_put_device(ti, ic->dev);
if (ic->meta_dev)
dm_put_device(ti, ic->meta_dev);
- dm_integrity_free_page_list(ic, ic->journal);
- dm_integrity_free_page_list(ic, ic->journal_io);
- dm_integrity_free_page_list(ic, ic->journal_xor);
+ dm_integrity_free_page_list(ic->journal);
+ dm_integrity_free_page_list(ic->journal_io);
+ dm_integrity_free_page_list(ic->journal_xor);
if (ic->journal_scatterlist)
dm_integrity_free_journal_scatterlist(ic, ic->journal_scatterlist);
if (ic->journal_io_scatterlist)