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gfs2: Convert gfs2_find_jhead() to use a folio

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Remove a call to grab_cache_page() by using a folio throughout
this function.

[agruenba@redhat.com: Adjust to return value difference between
bio_add_page() and bio_add_folio().]

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
This commit is contained in:
Matthew Wilcox (Oracle)
2025-02-10 13:34:44 +00:00
committed by Andreas Gruenbacher
parent e00307e8d4
commit 4082976009
1 changed files with 11 additions and 11 deletions
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22
fs/gfs2/lops.c
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@@ -512,9 +512,9 @@ int gfs2_find_jhead(struct gfs2_jdesc *jd, struct gfs2_log_header_host *head,
unsigned int shift = PAGE_SHIFT - bsize_shift;
unsigned int max_blocks = 2 * 1024 * 1024 >> bsize_shift;
struct gfs2_journal_extent *je;
int sz, ret = 0;
int ret = 0;
struct bio *bio = NULL;
struct page *page = NULL;
struct folio *folio = NULL;
bool done = false;
errseq_t since;
@@ -527,9 +527,10 @@ int gfs2_find_jhead(struct gfs2_jdesc *jd, struct gfs2_log_header_host *head,
u64 dblock = je->dblock;
for (; block < je->lblock + je->blocks; block++, dblock++) {
if (!page) {
page = grab_cache_page(mapping, block >> shift);
if (!page) {
if (!folio) {
folio = filemap_grab_folio(mapping,
block >> shift);
if (!folio) {
ret = -ENOMEM;
done = true;
goto out;
@@ -541,8 +542,7 @@ int gfs2_find_jhead(struct gfs2_jdesc *jd, struct gfs2_log_header_host *head,
sector_t sector = dblock << sdp->sd_fsb2bb_shift;
if (bio_end_sector(bio) == sector) {
sz = bio_add_page(bio, page, bsize, off);
if (sz == bsize)
if (bio_add_folio(bio, folio, bsize, off))
goto block_added;
}
if (off) {
@@ -562,12 +562,12 @@ int gfs2_find_jhead(struct gfs2_jdesc *jd, struct gfs2_log_header_host *head,
bio = gfs2_log_alloc_bio(sdp, dblock, gfs2_end_log_read);
bio->bi_opf = REQ_OP_READ;
add_block_to_new_bio:
sz = bio_add_page(bio, page, bsize, off);
BUG_ON(sz != bsize);
if (!bio_add_folio(bio, folio, bsize, off))
BUG();
block_added:
off += bsize;
if (off == PAGE_SIZE)
page = NULL;
if (off == folio_size(folio))
folio = NULL;
if (blocks_submitted <= blocks_read + max_blocks) {
/* Keep at least one bio in flight */
continue;