diff options
Diffstat (limited to 'fs/f2fs/data.c')
| -rw-r--r-- | fs/f2fs/data.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c index 5c06db1..7fff6ac 100644 --- a/fs/f2fs/data.c +++ b/fs/f2fs/data.c @@ -116,6 +116,44 @@ static void __submit_merged_bio(struct f2fs_bio_info *io) io->bio = NULL; } +bool is_merged_page(struct f2fs_sb_info *sbi, struct page *page, + enum page_type type) +{ + enum page_type btype = PAGE_TYPE_OF_BIO(type); + struct f2fs_bio_info *io = &sbi->write_io[btype]; + struct bio_vec *bvec; + struct page *target; + int i; + + down_read(&io->io_rwsem); + if (!io->bio) { + up_read(&io->io_rwsem); + return false; + } + + bio_for_each_segment_all(bvec, io->bio, i) { + + if (bvec->bv_page->mapping) { + target = bvec->bv_page; + } else { + struct f2fs_crypto_ctx *ctx; + + /* encrypted page */ + ctx = (struct f2fs_crypto_ctx *)page_private( + bvec->bv_page); + target = ctx->w.control_page; + } + + if (page == target) { + up_read(&io->io_rwsem); + return true; + } + } + + up_read(&io->io_rwsem); + return false; +} + void f2fs_submit_merged_bio(struct f2fs_sb_info *sbi, enum page_type type, int rw) { |
