From: Jaegeuk Kim <jaegeuk@kernel.org> To: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net Cc: Jaegeuk Kim <jaegeuk@kernel.org> Subject: [PATCH 2/2] f2fs: do not preallocate block unaligned to 4KB Date: Sat, 7 May 2016 10:45:19 -0700 [thread overview] Message-ID: <1462643119-96530-2-git-send-email-jaegeuk@kernel.org> (raw) In-Reply-To: <1462643119-96530-1-git-send-email-jaegeuk@kernel.org> Previously f2fs_preallocate_blocks() tries to allocate unaligned blocks. In f2fs_write_begin(), however, prepare_write_begin() does not skip its allocation due to (len != 4KB). So, it needs locking node page twice unexpectedly. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org> --- fs/f2fs/data.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c index 96b0353..369d953 100644 --- a/fs/f2fs/data.c +++ b/fs/f2fs/data.c @@ -582,8 +582,8 @@ ssize_t f2fs_preallocate_blocks(struct kiocb *iocb, struct iov_iter *from) struct f2fs_map_blocks map; ssize_t ret = 0; - map.m_lblk = F2FS_BYTES_TO_BLK(iocb->ki_pos); - map.m_len = F2FS_BLK_ALIGN(iov_iter_count(from)); + map.m_lblk = F2FS_BLK_ALIGN(iocb->ki_pos); + map.m_len = F2FS_BYTES_TO_BLK(iov_iter_count(from)); map.m_next_pgofs = NULL; if (f2fs_encrypted_inode(inode)) -- 2.6.3
WARNING: multiple messages have this Message-ID (diff)
From: Jaegeuk Kim <jaegeuk@kernel.org> To: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net Cc: Jaegeuk Kim <jaegeuk@kernel.org> Subject: [PATCH 2/2] f2fs: do not preallocate block unaligned to 4KB Date: Sat, 7 May 2016 10:45:19 -0700 [thread overview] Message-ID: <1462643119-96530-2-git-send-email-jaegeuk@kernel.org> (raw) In-Reply-To: <1462643119-96530-1-git-send-email-jaegeuk@kernel.org> Previously f2fs_preallocate_blocks() tries to allocate unaligned blocks. In f2fs_write_begin(), however, prepare_write_begin() does not skip its allocation due to (len != 4KB). So, it needs locking node page twice unexpectedly. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org> --- fs/f2fs/data.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c index 96b0353..369d953 100644 --- a/fs/f2fs/data.c +++ b/fs/f2fs/data.c @@ -582,8 +582,8 @@ ssize_t f2fs_preallocate_blocks(struct kiocb *iocb, struct iov_iter *from) struct f2fs_map_blocks map; ssize_t ret = 0; - map.m_lblk = F2FS_BYTES_TO_BLK(iocb->ki_pos); - map.m_len = F2FS_BLK_ALIGN(iov_iter_count(from)); + map.m_lblk = F2FS_BLK_ALIGN(iocb->ki_pos); + map.m_len = F2FS_BYTES_TO_BLK(iov_iter_count(from)); map.m_next_pgofs = NULL; if (f2fs_encrypted_inode(inode)) -- 2.6.3 ------------------------------------------------------------------------------ Find and fix application performance issues faster with Applications Manager Applications Manager provides deep performance insights into multiple tiers of your business applications. It resolves application problems quickly and reduces your MTTR. Get your free trial! https://ad.doubleclick.net/ddm/clk/302982198;130105516;z
next prev parent reply other threads:[~2016-05-07 17:45 UTC|newest] Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top 2016-05-07 17:45 [PATCH 1/2] f2fs: read node blocks ahead when truncating blocks Jaegeuk Kim 2016-05-07 17:45 ` Jaegeuk Kim 2016-05-07 17:45 ` Jaegeuk Kim [this message] 2016-05-07 17:45 ` [PATCH 2/2] f2fs: do not preallocate block unaligned to 4KB Jaegeuk Kim
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=1462643119-96530-2-git-send-email-jaegeuk@kernel.org \ --to=jaegeuk@kernel.org \ --cc=linux-f2fs-devel@lists.sourceforge.net \ --cc=linux-fsdevel@vger.kernel.org \ --cc=linux-kernel@vger.kernel.org \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.