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authorChristoph Hellwig <hch@lst.de>2023-04-11 19:14:54 +0200
committerAndrew Morton <akpm@linux-foundation.org>2023-04-18 16:29:59 -0700
commit6aa4b839e7a481cc20b243168dc3333fc3d87eb0 (patch)
tree16cdaa2f61e42eb226acd11a48a75272d8eea330 /drivers/block
parent889ae9169b45f0fc3fc05f93c3c6fa8a851eab67 (diff)
zram: don't pass a bvec to __zram_bvec_write
__zram_bvec_write only extracts the page from __zram_bvec_write and always expects a full page of input. Pass the page directly instead of the bvec and rename the function to zram_write_page. Link: https://lkml.kernel.org/r/20230411171459.567614-13-hch@lst.de Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Sergey Senozhatsky <senozhatsky@chromium.org> Acked-by: Minchan Kim <minchan@kernel.org> Cc: Jens Axboe <axboe@kernel.dk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'drivers/block')
-rw-r--r--drivers/block/zram/zram_drv.c14
1 files changed, 4 insertions, 10 deletions
diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c
index 2e985531d8cb..cbcfb5cb2fed 100644
--- a/drivers/block/zram/zram_drv.c
+++ b/drivers/block/zram/zram_drv.c
@@ -1443,8 +1443,7 @@ static int zram_bvec_read(struct zram *zram, struct bio_vec *bvec,
return zram_read_page(zram, bvec->bv_page, index, bio, false);
}
-static int __zram_bvec_write(struct zram *zram, struct bio_vec *bvec,
- u32 index, struct bio *bio)
+static int zram_write_page(struct zram *zram, struct page *page, u32 index)
{
int ret = 0;
unsigned long alloced_pages;
@@ -1452,7 +1451,6 @@ static int __zram_bvec_write(struct zram *zram, struct bio_vec *bvec,
unsigned int comp_len = 0;
void *src, *dst, *mem;
struct zcomp_strm *zstrm;
- struct page *page = bvec->bv_page;
unsigned long element = 0;
enum zram_pageflags flags = 0;
@@ -1573,11 +1571,9 @@ out:
static int zram_bvec_write(struct zram *zram, struct bio_vec *bvec,
u32 index, int offset, struct bio *bio)
{
+ struct page *page = bvec->bv_page;
int ret;
- struct page *page = NULL;
- struct bio_vec vec;
- vec = *bvec;
if (is_partial_io(bvec)) {
/*
* This is a partial IO. We need to read the full page
@@ -1592,11 +1588,9 @@ static int zram_bvec_write(struct zram *zram, struct bio_vec *bvec,
goto out;
memcpy_from_bvec(page_address(page) + offset, bvec);
-
- bvec_set_page(&vec, page, PAGE_SIZE, 0);
}
- ret = __zram_bvec_write(zram, &vec, index, bio);
+ ret = zram_write_page(zram, page, index);
out:
if (is_partial_io(bvec))
__free_page(page);
@@ -1711,7 +1705,7 @@ static int zram_recompress(struct zram *zram, u32 index, struct page *page,
/*
* No direct reclaim (slow path) for handle allocation and no
- * re-compression attempt (unlike in __zram_bvec_write()) since
+ * re-compression attempt (unlike in zram_write_bvec()) since
* we already have stored that object in zsmalloc. If we cannot
* alloc memory for recompressed object then we bail out and
* simply keep the old (existing) object in zsmalloc.