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Mon, 22 Jul 2024 05:56:08 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id yBcXMXj0nWa+LQAAD6G6ig (envelope-from ); Mon, 22 Jul 2024 05:56:08 +0000 From: Qu Wenruo To: linux-btrfs@vger.kernel.org Cc: "Reviewed-by : Johannes Thumshirn" Subject: [PATCH v2 1/2] btrfs: extract the stripe length calculation into a helper Date: Mon, 22 Jul 2024 15:25:48 +0930 Message-ID: X-Mailer: git-send-email 2.45.2 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-btrfs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Spamd-Result: default: False [0.19 / 50.00]; NEURAL_HAM_LONG(-1.00)[-1.000]; MID_CONTAINS_FROM(1.00)[]; R_MISSING_CHARSET(0.50)[]; R_DKIM_ALLOW(-0.20)[suse.com:s=susede1]; MIME_GOOD(-0.10)[text/plain]; MX_GOOD(-0.01)[]; ARC_NA(0.00)[]; MIME_TRACE(0.00)[0:+]; TO_DN_SOME(0.00)[]; RBL_SPAMHAUS_BLOCKED_OPENRESOLVER(0.00)[2a07:de40:b281:104:10:150:64:97:from]; FUZZY_BLOCKED(0.00)[rspamd.com]; RCVD_VIA_SMTP_AUTH(0.00)[]; RECEIVED_SPAMHAUS_BLOCKED_OPENRESOLVER(0.00)[2a07:de40:b281:106:10:150:64:167:received]; RCPT_COUNT_TWO(0.00)[2]; DKIM_SIGNED(0.00)[suse.com:s=susede1]; FROM_EQ_ENVFROM(0.00)[]; FROM_HAS_DN(0.00)[]; SPAMHAUS_XBL(0.00)[2a07:de40:b281:104:10:150:64:97:from]; RCVD_TLS_ALL(0.00)[]; DBL_BLOCKED_OPENRESOLVER(0.00)[suse.com:dkim,suse.com:email,imap1.dmz-prg2.suse.org:helo,imap1.dmz-prg2.suse.org:rdns,wdc.com:email]; RCVD_COUNT_TWO(0.00)[2]; TO_MATCH_ENVRCPT_ALL(0.00)[]; DKIM_TRACE(0.00)[suse.com:+] X-Spam-Level: X-Rspamd-Queue-Id: 389071FB56 X-Spam-Score: 0.19 X-Spam-Flag: NO X-Rspamd-Action: no action X-Rspamd-Server: rspamd2.dmz-prg2.suse.org X-Spamd-Bar: / Currently there are two location which needs to calculate the real length of a stripe (which can be at the end of a chunk, and the chunk size may not always be 64K aligned). Extract them into a helper as we're going to have a third user soon. Reviewed-by: Reviewed-by: Johannes Thumshirn Signed-off-by: Qu Wenruo --- fs/btrfs/scrub.c | 17 +++++++++++------ 1 file changed, 11 insertions(+), 6 deletions(-) diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c index 14a8d7100018..d42a58386415 100644 --- a/fs/btrfs/scrub.c +++ b/fs/btrfs/scrub.c @@ -1648,14 +1648,21 @@ static void scrub_reset_stripe(struct scrub_stripe *stripe) } } +static u32 stripe_length(struct scrub_stripe *stripe) +{ + ASSERT(stripe->bg); + + return min(BTRFS_STRIPE_LEN, + stripe->bg->start + stripe->bg->length - stripe->logical); + +} + static void scrub_submit_extent_sector_read(struct scrub_ctx *sctx, struct scrub_stripe *stripe) { struct btrfs_fs_info *fs_info = stripe->bg->fs_info; struct btrfs_bio *bbio = NULL; - unsigned int nr_sectors = min(BTRFS_STRIPE_LEN, stripe->bg->start + - stripe->bg->length - stripe->logical) >> - fs_info->sectorsize_bits; + unsigned int nr_sectors = stripe_length(stripe) >> fs_info->sectorsize_bits; u64 stripe_len = BTRFS_STRIPE_LEN; int mirror = stripe->mirror_num; int i; @@ -1729,9 +1736,7 @@ static void scrub_submit_initial_read(struct scrub_ctx *sctx, { struct btrfs_fs_info *fs_info = sctx->fs_info; struct btrfs_bio *bbio; - unsigned int nr_sectors = min(BTRFS_STRIPE_LEN, stripe->bg->start + - stripe->bg->length - stripe->logical) >> - fs_info->sectorsize_bits; + unsigned int nr_sectors = stripe_length(stripe) >> fs_info->sectorsize_bits; int mirror = stripe->mirror_num; ASSERT(stripe->bg);