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-rw-r--r--fs/btrfs/lzo.c89
1 files changed, 45 insertions, 44 deletions
diff --git a/fs/btrfs/lzo.c b/fs/btrfs/lzo.c
index 3e5d3b7028e8..1c396ac167aa 100644
--- a/fs/btrfs/lzo.c
+++ b/fs/btrfs/lzo.c
@@ -130,17 +130,17 @@ static inline size_t read_compress_length(const char *buf)
*/
static int copy_compressed_data_to_page(char *compressed_data,
size_t compressed_size,
- struct page **out_pages,
- unsigned long max_nr_page,
+ struct folio **out_folios,
+ unsigned long max_nr_folio,
u32 *cur_out,
const u32 sectorsize)
{
u32 sector_bytes_left;
u32 orig_out;
- struct page *cur_page;
+ struct folio *cur_folio;
char *kaddr;
- if ((*cur_out / PAGE_SIZE) >= max_nr_page)
+ if ((*cur_out / PAGE_SIZE) >= max_nr_folio)
return -E2BIG;
/*
@@ -149,16 +149,16 @@ static int copy_compressed_data_to_page(char *compressed_data,
*/
ASSERT((*cur_out / sectorsize) == (*cur_out + LZO_LEN - 1) / sectorsize);
- cur_page = out_pages[*cur_out / PAGE_SIZE];
+ cur_folio = out_folios[*cur_out / PAGE_SIZE];
/* Allocate a new page */
- if (!cur_page) {
- cur_page = btrfs_alloc_compr_page();
- if (!cur_page)
+ if (!cur_folio) {
+ cur_folio = btrfs_alloc_compr_folio();
+ if (!cur_folio)
return -ENOMEM;
- out_pages[*cur_out / PAGE_SIZE] = cur_page;
+ out_folios[*cur_out / PAGE_SIZE] = cur_folio;
}
- kaddr = kmap_local_page(cur_page);
+ kaddr = kmap_local_folio(cur_folio, 0);
write_compress_length(kaddr + offset_in_page(*cur_out),
compressed_size);
*cur_out += LZO_LEN;
@@ -172,18 +172,18 @@ static int copy_compressed_data_to_page(char *compressed_data,
kunmap_local(kaddr);
- if ((*cur_out / PAGE_SIZE) >= max_nr_page)
+ if ((*cur_out / PAGE_SIZE) >= max_nr_folio)
return -E2BIG;
- cur_page = out_pages[*cur_out / PAGE_SIZE];
+ cur_folio = out_folios[*cur_out / PAGE_SIZE];
/* Allocate a new page */
- if (!cur_page) {
- cur_page = btrfs_alloc_compr_page();
- if (!cur_page)
+ if (!cur_folio) {
+ cur_folio = btrfs_alloc_compr_folio();
+ if (!cur_folio)
return -ENOMEM;
- out_pages[*cur_out / PAGE_SIZE] = cur_page;
+ out_folios[*cur_out / PAGE_SIZE] = cur_folio;
}
- kaddr = kmap_local_page(cur_page);
+ kaddr = kmap_local_folio(cur_folio, 0);
memcpy(kaddr + offset_in_page(*cur_out),
compressed_data + *cur_out - orig_out, copy_len);
@@ -209,15 +209,15 @@ out:
return 0;
}
-int lzo_compress_pages(struct list_head *ws, struct address_space *mapping,
- u64 start, struct page **pages, unsigned long *out_pages,
- unsigned long *total_in, unsigned long *total_out)
+int lzo_compress_folios(struct list_head *ws, struct address_space *mapping,
+ u64 start, struct folio **folios, unsigned long *out_folios,
+ unsigned long *total_in, unsigned long *total_out)
{
struct workspace *workspace = list_entry(ws, struct workspace, list);
const u32 sectorsize = inode_to_fs_info(mapping->host)->sectorsize;
- struct page *page_in = NULL;
+ struct folio *folio_in = NULL;
char *sizes_ptr;
- const unsigned long max_nr_page = *out_pages;
+ const unsigned long max_nr_folio = *out_folios;
int ret = 0;
/* Points to the file offset of input data */
u64 cur_in = start;
@@ -225,8 +225,8 @@ int lzo_compress_pages(struct list_head *ws, struct address_space *mapping,
u32 cur_out = 0;
u32 len = *total_out;
- ASSERT(max_nr_page > 0);
- *out_pages = 0;
+ ASSERT(max_nr_folio > 0);
+ *out_folios = 0;
*total_out = 0;
*total_in = 0;
@@ -243,15 +243,16 @@ int lzo_compress_pages(struct list_head *ws, struct address_space *mapping,
size_t out_len;
/* Get the input page first */
- if (!page_in) {
- page_in = find_get_page(mapping, cur_in >> PAGE_SHIFT);
- ASSERT(page_in);
+ if (!folio_in) {
+ ret = btrfs_compress_filemap_get_folio(mapping, cur_in, &folio_in);
+ if (ret < 0)
+ goto out;
}
/* Compress at most one sector of data each time */
in_len = min_t(u32, start + len - cur_in, sectorsize - sector_off);
ASSERT(in_len);
- data_in = kmap_local_page(page_in);
+ data_in = kmap_local_folio(folio_in, 0);
ret = lzo1x_1_compress(data_in +
offset_in_page(cur_in), in_len,
workspace->cbuf, &out_len,
@@ -264,7 +265,7 @@ int lzo_compress_pages(struct list_head *ws, struct address_space *mapping,
}
ret = copy_compressed_data_to_page(workspace->cbuf, out_len,
- pages, max_nr_page,
+ folios, max_nr_folio,
&cur_out, sectorsize);
if (ret < 0)
goto out;
@@ -282,13 +283,13 @@ int lzo_compress_pages(struct list_head *ws, struct address_space *mapping,
/* Check if we have reached page boundary */
if (PAGE_ALIGNED(cur_in)) {
- put_page(page_in);
- page_in = NULL;
+ folio_put(folio_in);
+ folio_in = NULL;
}
}
/* Store the size of all chunks of compressed data */
- sizes_ptr = kmap_local_page(pages[0]);
+ sizes_ptr = kmap_local_folio(folios[0], 0);
write_compress_length(sizes_ptr, cur_out);
kunmap_local(sizes_ptr);
@@ -296,9 +297,9 @@ int lzo_compress_pages(struct list_head *ws, struct address_space *mapping,
*total_out = cur_out;
*total_in = cur_in - start;
out:
- if (page_in)
- put_page(page_in);
- *out_pages = DIV_ROUND_UP(cur_out, PAGE_SIZE);
+ if (folio_in)
+ folio_put(folio_in);
+ *out_folios = DIV_ROUND_UP(cur_out, PAGE_SIZE);
return ret;
}
@@ -313,15 +314,15 @@ static void copy_compressed_segment(struct compressed_bio *cb,
u32 orig_in = *cur_in;
while (*cur_in < orig_in + len) {
- struct page *cur_page;
+ struct folio *cur_folio;
u32 copy_len = min_t(u32, PAGE_SIZE - offset_in_page(*cur_in),
orig_in + len - *cur_in);
ASSERT(copy_len);
- cur_page = cb->compressed_pages[*cur_in / PAGE_SIZE];
+ cur_folio = cb->compressed_folios[*cur_in / PAGE_SIZE];
- memcpy_from_page(dest + *cur_in - orig_in, cur_page,
- offset_in_page(*cur_in), copy_len);
+ memcpy_from_folio(dest + *cur_in - orig_in, cur_folio,
+ offset_in_folio(cur_folio, *cur_in), copy_len);
*cur_in += copy_len;
}
@@ -341,7 +342,7 @@ int lzo_decompress_bio(struct list_head *ws, struct compressed_bio *cb)
/* Bytes decompressed so far */
u32 cur_out = 0;
- kaddr = kmap_local_page(cb->compressed_pages[0]);
+ kaddr = kmap_local_folio(cb->compressed_folios[0], 0);
len_in = read_compress_length(kaddr);
kunmap_local(kaddr);
cur_in += LZO_LEN;
@@ -363,7 +364,7 @@ int lzo_decompress_bio(struct list_head *ws, struct compressed_bio *cb)
/* Go through each lzo segment */
while (cur_in < len_in) {
- struct page *cur_page;
+ struct folio *cur_folio;
/* Length of the compressed segment */
u32 seg_len;
u32 sector_bytes_left;
@@ -375,9 +376,9 @@ int lzo_decompress_bio(struct list_head *ws, struct compressed_bio *cb)
*/
ASSERT(cur_in / sectorsize ==
(cur_in + LZO_LEN - 1) / sectorsize);
- cur_page = cb->compressed_pages[cur_in / PAGE_SIZE];
- ASSERT(cur_page);
- kaddr = kmap_local_page(cur_page);
+ cur_folio = cb->compressed_folios[cur_in / PAGE_SIZE];
+ ASSERT(cur_folio);
+ kaddr = kmap_local_folio(cur_folio, 0);
seg_len = read_compress_length(kaddr + offset_in_page(cur_in));
kunmap_local(kaddr);
cur_in += LZO_LEN;
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-01 22:03:16 +0000