diff options
| -rw-r--r-- | fs/f2fs/data.c | 90 |
1 files changed, 47 insertions, 43 deletions
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c index ba4963f..53fae38 100644 --- a/fs/f2fs/data.c +++ b/fs/f2fs/data.c @@ -955,6 +955,37 @@ out: return ret; } +struct bio *f2fs_grab_bio(struct inode *inode, block_t blkaddr, + unsigned nr_pages) +{ + struct f2fs_sb_info *sbi = F2FS_I_SB(inode); + struct fscrypt_ctx *ctx = NULL; + struct block_device *bdev = sbi->sb->s_bdev; + struct bio *bio; + + if (f2fs_encrypted_inode(inode) && S_ISREG(inode->i_mode)) { + ctx = fscrypt_get_ctx(inode, GFP_NOFS); + if (IS_ERR(ctx)) + return ERR_CAST(ctx); + + /* wait the page to be moved by cleaning */ + f2fs_wait_on_encrypted_page_writeback(sbi, blkaddr); + } + + bio = bio_alloc(GFP_KERNEL, min_t(int, nr_pages, BIO_MAX_PAGES)); + if (!bio) { + if (ctx) + fscrypt_release_ctx(ctx); + return ERR_PTR(-ENOMEM); + } + bio->bi_bdev = bdev; + bio->bi_iter.bi_sector = SECTOR_FROM_BLOCK(blkaddr); + bio->bi_end_io = f2fs_read_end_io; + bio->bi_private = ctx; + + return bio; +} + /* * This function was originally taken from fs/mpage.c, and customized for f2fs. * Major change was from block_size == page_size in f2fs by default. @@ -973,7 +1004,6 @@ static int f2fs_mpage_readpages(struct address_space *mapping, sector_t last_block; sector_t last_block_in_file; sector_t block_nr; - struct block_device *bdev = inode->i_sb->s_bdev; struct f2fs_map_blocks map; map.m_pblk = 0; @@ -1048,31 +1078,9 @@ submit_and_realloc: bio = NULL; } if (bio == NULL) { - struct fscrypt_ctx *ctx = NULL; - - if (f2fs_encrypted_inode(inode) && - S_ISREG(inode->i_mode)) { - - ctx = fscrypt_get_ctx(inode, GFP_NOFS); - if (IS_ERR(ctx)) - goto set_error_page; - - /* wait the page to be moved by cleaning */ - f2fs_wait_on_encrypted_page_writeback( - F2FS_I_SB(inode), block_nr); - } - - bio = bio_alloc(GFP_KERNEL, - min_t(int, nr_pages, BIO_MAX_PAGES)); - if (!bio) { - if (ctx) - fscrypt_release_ctx(ctx); + bio = f2fs_grab_bio(inode, block_nr, nr_pages); + if (IS_ERR(bio)) goto set_error_page; - } - bio->bi_bdev = bdev; - bio->bi_iter.bi_sector = SECTOR_FROM_BLOCK(block_nr); - bio->bi_end_io = f2fs_read_end_io; - bio->bi_private = ctx; } if (bio_add_page(bio, page, blocksize, 0) < blocksize) @@ -1622,18 +1630,21 @@ repeat: if (blkaddr == NEW_ADDR) { zero_user_segment(page, 0, PAGE_SIZE); } else { - struct f2fs_io_info fio = { - .sbi = sbi, - .type = DATA, - .rw = READ_SYNC, - .old_blkaddr = blkaddr, - .new_blkaddr = blkaddr, - .page = page, - .encrypted_page = NULL, - }; - err = f2fs_submit_page_bio(&fio); - if (err) + struct bio *bio; + + bio = f2fs_grab_bio(inode, blkaddr, 1); + if (IS_ERR(bio)) { + err = PTR_ERR(bio); goto fail; + } + + if (bio_add_page(bio, page, PAGE_SIZE, 0) < PAGE_SIZE) { + bio_put(bio); + err = -EFAULT; + goto fail; + } + + __submit_bio(sbi, READ_SYNC, bio, DATA); lock_page(page); if (unlikely(!PageUptodate(page))) { @@ -1644,13 +1655,6 @@ repeat: f2fs_put_page(page, 1); goto repeat; } - - /* avoid symlink page */ - if (f2fs_encrypted_inode(inode) && S_ISREG(inode->i_mode)) { - err = fscrypt_decrypt_page(page); - if (err) - goto fail; - } } out_update: SetPageUptodate(page); |