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Fri, 11 Aug 2023 11:05:06 +0000 Received: by quack3.suse.cz (Postfix, from userid 1000) id 40013A0796; Fri, 11 Aug 2023 13:05:05 +0200 (CEST) From: Jan Kara To: Cc: , Christoph Hellwig , Jan Kara , linux-ext4@vger.kernel.org, Ted Tso Subject: [PATCH 22/29] ext4: Convert to bdev_open_by_dev() Date: Fri, 11 Aug 2023 13:04:53 +0200 Message-Id: <20230811110504.27514-22-jack@suse.cz> X-Mailer: git-send-email 2.35.3 In-Reply-To: <20230810171429.31759-1-jack@suse.cz> References: <20230810171429.31759-1-jack@suse.cz> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=5676; i=jack@suse.cz; h=from:subject; bh=6VV0kOL4N1DPbCqEFzk2LwPWsXQAZ3Zpi1Z2jbd1UlY=; b=owEBbQGS/pANAwAIAZydqgc/ZEDZAcsmYgBk1hXW7NVocQ0eWk9OwEnUYYJ3hSdaSlQd9eJxRGFf MeB2ZAWJATMEAAEIAB0WIQSrWdEr1p4yirVVKBycnaoHP2RA2QUCZNYV1gAKCRCcnaoHP2RA2U/0B/ 9lt/Z4heyidLepEtKMNLbuDDDMNqrdNgjO+urt023ZxGt673zYdPE5UNTFpeQU/t98d+5xtgEQ2Fmg SflNarU364Mrqc/cLFZrxXznX1F7Egu0sJOP8CtECO9hUGuL8AR/Jm17e6sWGPQk4CjoqgEErikWsu ccbPHhQrcD23bNKG2mA25OrasITuA5bJpxDoqhGoufFpSOPxSHDB2Nb7fmzYVdSWQ4ChAqWP0rOZqc nDZGoVZPMEqNwGDq6ZQaHFU0iF/avy/vZztlq5ybQV+jK6/0uMVnqWJA4YGE/FsmkbxXfaY5Gs7v07 u0LqykNobh+o5CuBH09oyY37l1afaJ X-Developer-Key: i=jack@suse.cz; a=openpgp; fpr=93C6099A142276A28BBE35D815BC833443038D8C X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-ext4@vger.kernel.org Convert ext4 to use bdev_open_by_dev() and pass the handle around. CC: CC: Ted Tso Signed-off-by: Jan Kara --- fs/ext4/ext4.h | 2 +- fs/ext4/fsmap.c | 9 +++++---- fs/ext4/super.c | 40 ++++++++++++++++++++-------------------- 3 files changed, 26 insertions(+), 25 deletions(-) diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index 1e2259d9967d..6856e80abf70 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -1541,7 +1541,7 @@ struct ext4_sb_info { unsigned long s_commit_interval; u32 s_max_batch_time; u32 s_min_batch_time; - struct block_device *s_journal_bdev; + struct bdev_handle *s_journal_bdev_handle; #ifdef CONFIG_QUOTA /* Names of quota files with journalled quota */ char __rcu *s_qf_names[EXT4_MAXQUOTAS]; diff --git a/fs/ext4/fsmap.c b/fs/ext4/fsmap.c index cdf9bfe10137..11e6f33677a2 100644 --- a/fs/ext4/fsmap.c +++ b/fs/ext4/fsmap.c @@ -576,8 +576,9 @@ static bool ext4_getfsmap_is_valid_device(struct super_block *sb, if (fm->fmr_device == 0 || fm->fmr_device == UINT_MAX || fm->fmr_device == new_encode_dev(sb->s_bdev->bd_dev)) return true; - if (EXT4_SB(sb)->s_journal_bdev && - fm->fmr_device == new_encode_dev(EXT4_SB(sb)->s_journal_bdev->bd_dev)) + if (EXT4_SB(sb)->s_journal_bdev_handle && + fm->fmr_device == + new_encode_dev(EXT4_SB(sb)->s_journal_bdev_handle->bdev->bd_dev)) return true; return false; } @@ -647,9 +648,9 @@ int ext4_getfsmap(struct super_block *sb, struct ext4_fsmap_head *head, memset(handlers, 0, sizeof(handlers)); handlers[0].gfd_dev = new_encode_dev(sb->s_bdev->bd_dev); handlers[0].gfd_fn = ext4_getfsmap_datadev; - if (EXT4_SB(sb)->s_journal_bdev) { + if (EXT4_SB(sb)->s_journal_bdev_handle) { handlers[1].gfd_dev = new_encode_dev( - EXT4_SB(sb)->s_journal_bdev->bd_dev); + EXT4_SB(sb)->s_journal_bdev_handle->bdev->bd_dev); handlers[1].gfd_fn = ext4_getfsmap_logdev; } diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 45fd5372bf8a..9ca3665e1b92 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -1099,20 +1099,20 @@ void ext4_update_dynamic_rev(struct super_block *sb) /* * Open the external journal device */ -static struct block_device *ext4_blkdev_get(dev_t dev, struct super_block *sb) +static struct bdev_handle *ext4_blkdev_get(dev_t dev, struct super_block *sb) { - struct block_device *bdev; + struct bdev_handle *handle; - bdev = blkdev_get_by_dev(dev, BLK_OPEN_READ | BLK_OPEN_WRITE, sb, - &fs_holder_ops); - if (IS_ERR(bdev)) + handle = bdev_open_by_dev(dev, BLK_OPEN_READ | BLK_OPEN_WRITE, sb, + &fs_holder_ops); + if (IS_ERR(handle)) goto fail; - return bdev; + return handle; fail: ext4_msg(sb, KERN_ERR, "failed to open journal device unknown-block(%u,%u) %ld", - MAJOR(dev), MINOR(dev), PTR_ERR(bdev)); + MAJOR(dev), MINOR(dev), PTR_ERR(handle)); return NULL; } @@ -1121,17 +1121,15 @@ static struct block_device *ext4_blkdev_get(dev_t dev, struct super_block *sb) */ static void ext4_blkdev_remove(struct ext4_sb_info *sbi) { - struct block_device *bdev; - bdev = sbi->s_journal_bdev; - if (bdev) { + if (sbi->s_journal_bdev_handle) { /* * Invalidate the journal device's buffers. We don't want them * floating about in memory - the physical journal device may * hotswapped, and it breaks the `ro-after' testing code. */ - invalidate_bdev(bdev); - blkdev_put(bdev, sbi->s_sb); - sbi->s_journal_bdev = NULL; + invalidate_bdev(sbi->s_journal_bdev_handle->bdev); + bdev_release(sbi->s_journal_bdev_handle); + sbi->s_journal_bdev_handle = NULL; } } @@ -1329,8 +1327,8 @@ static void ext4_put_super(struct super_block *sb) sync_blockdev(sb->s_bdev); invalidate_bdev(sb->s_bdev); - if (sbi->s_journal_bdev) { - sync_blockdev(sbi->s_journal_bdev); + if (sbi->s_journal_bdev_handle) { + sync_blockdev(sbi->s_journal_bdev_handle->bdev); ext4_blkdev_remove(sbi); } @@ -4218,7 +4216,7 @@ int ext4_calculate_overhead(struct super_block *sb) * Add the internal journal blocks whether the journal has been * loaded or not */ - if (sbi->s_journal && !sbi->s_journal_bdev) + if (sbi->s_journal && !sbi->s_journal_bdev_handle) overhead += EXT4_NUM_B2C(sbi, sbi->s_journal->j_total_len); else if (ext4_has_feature_journal(sb) && !sbi->s_journal && j_inum) { /* j_inum for internal journal is non-zero */ @@ -5840,17 +5838,19 @@ static journal_t *ext4_get_dev_journal(struct super_block *sb, unsigned long offset; struct ext4_super_block *es; struct block_device *bdev; + struct bdev_handle *bdev_handle; if (WARN_ON_ONCE(!ext4_has_feature_journal(sb))) return NULL; /* see get_tree_bdev why this is needed and safe */ up_write(&sb->s_umount); - bdev = ext4_blkdev_get(j_dev, sb); + bdev_handle = ext4_blkdev_get(j_dev, sb); down_write(&sb->s_umount); - if (bdev == NULL) + if (!bdev_handle) return NULL; + bdev = bdev_handle->bdev; blocksize = sb->s_blocksize; hblock = bdev_logical_block_size(bdev); if (blocksize < hblock) { @@ -5914,14 +5914,14 @@ static journal_t *ext4_get_dev_journal(struct super_block *sb, be32_to_cpu(journal->j_superblock->s_nr_users)); goto out_journal; } - EXT4_SB(sb)->s_journal_bdev = bdev; + EXT4_SB(sb)->s_journal_bdev_handle = bdev_handle; ext4_init_journal_params(sb, journal); return journal; out_journal: jbd2_journal_destroy(journal); out_bdev: - blkdev_put(bdev, sb); + bdev_release(bdev_handle); return NULL; }