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 06/19] f2fs: introduce f2fs_commit_super Date: Fri, 1 May 2015 17:48:33 -0700 [thread overview] Message-ID: <1430527726-68547-6-git-send-email-jaegeuk@kernel.org> (raw) In-Reply-To: <1430527726-68547-1-git-send-email-jaegeuk@kernel.org> This patch introduces f2fs_commit_super to write updated superblock. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org> --- fs/f2fs/f2fs.h | 1 + fs/f2fs/super.c | 24 ++++++++++++++++++++++++ 2 files changed, 25 insertions(+) diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index c98454d..7ff3ac7 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -1535,6 +1535,7 @@ static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode) /* * super.c */ +int f2fs_commit_super(struct f2fs_sb_info *); int f2fs_sync_fs(struct super_block *, int); extern __printf(3, 4) void f2fs_msg(struct super_block *, const char *, const char *, ...); diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index b2dd1b0..8584168 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -966,6 +966,30 @@ retry: return 0; } +int f2fs_commit_super(struct f2fs_sb_info *sbi) +{ + struct buffer_head *sbh = sbi->raw_super_buf; + sector_t block = sbh->b_blocknr; + int err; + + /* write back-up superblock first */ + sbh->b_blocknr = block ? 0 : 1; + mark_buffer_dirty(sbh); + err = sync_dirty_buffer(sbh); + + sbh->b_blocknr = block; + if (err) + goto out; + + /* write current valid superblock */ + mark_buffer_dirty(sbh); + err = sync_dirty_buffer(sbh); +out: + clear_buffer_write_io_error(sbh); + set_buffer_uptodate(sbh); + return err; +} + static int f2fs_fill_super(struct super_block *sb, void *data, int silent) { struct f2fs_sb_info *sbi; -- 2.1.1
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 06/19] f2fs: introduce f2fs_commit_super Date: Fri, 1 May 2015 17:48:33 -0700 [thread overview] Message-ID: <1430527726-68547-6-git-send-email-jaegeuk@kernel.org> (raw) In-Reply-To: <1430527726-68547-1-git-send-email-jaegeuk@kernel.org> This patch introduces f2fs_commit_super to write updated superblock. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org> --- fs/f2fs/f2fs.h | 1 + fs/f2fs/super.c | 24 ++++++++++++++++++++++++ 2 files changed, 25 insertions(+) diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index c98454d..7ff3ac7 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -1535,6 +1535,7 @@ static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode) /* * super.c */ +int f2fs_commit_super(struct f2fs_sb_info *); int f2fs_sync_fs(struct super_block *, int); extern __printf(3, 4) void f2fs_msg(struct super_block *, const char *, const char *, ...); diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index b2dd1b0..8584168 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -966,6 +966,30 @@ retry: return 0; } +int f2fs_commit_super(struct f2fs_sb_info *sbi) +{ + struct buffer_head *sbh = sbi->raw_super_buf; + sector_t block = sbh->b_blocknr; + int err; + + /* write back-up superblock first */ + sbh->b_blocknr = block ? 0 : 1; + mark_buffer_dirty(sbh); + err = sync_dirty_buffer(sbh); + + sbh->b_blocknr = block; + if (err) + goto out; + + /* write current valid superblock */ + mark_buffer_dirty(sbh); + err = sync_dirty_buffer(sbh); +out: + clear_buffer_write_io_error(sbh); + set_buffer_uptodate(sbh); + return err; +} + static int f2fs_fill_super(struct super_block *sb, void *data, int silent) { struct f2fs_sb_info *sbi; -- 2.1.1 ------------------------------------------------------------------------------ One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y
next prev parent reply other threads:[~2015-05-02 0:49 UTC|newest] Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top 2015-05-02 0:48 [PATCH 01/19] f2fs: fix not to check IS_ERR for null pointer Jaegeuk Kim 2015-05-02 0:48 ` [PATCH 02/19] f2fs: add missing version info in superblock Jaegeuk Kim 2015-05-02 0:48 ` Jaegeuk Kim 2015-05-02 0:48 ` [PATCH 03/19] f2fs: move existing definitions into f2fs.h Jaegeuk Kim 2015-05-02 0:48 ` Jaegeuk Kim 2015-05-02 0:48 ` [PATCH 04/19] f2fs: add feature facility in superblock Jaegeuk Kim 2015-05-02 0:48 ` Jaegeuk Kim 2015-05-02 0:48 ` [PATCH 05/19] f2fs: add f2fs_map_blocks Jaegeuk Kim 2015-05-02 0:48 ` Jaegeuk Kim [this message] 2015-05-02 0:48 ` [PATCH 06/19] f2fs: introduce f2fs_commit_super Jaegeuk Kim 2015-05-02 0:48 ` [PATCH 07/19] f2fs: expose f2fs_mpage_readpages Jaegeuk Kim 2015-05-02 0:48 ` Jaegeuk Kim 2015-05-02 0:48 ` [PATCH 08/19] f2fs: clean up f2fs_lookup Jaegeuk Kim 2015-05-02 0:48 ` Jaegeuk Kim 2015-05-02 0:48 ` [PATCH 09/19] f2fs: add f2fs_may_inline_{data, dentry} Jaegeuk Kim 2015-05-02 0:48 ` Jaegeuk Kim 2015-05-02 0:48 ` [PATCH 10/19] f2fs: add sbi and page pointer in f2fs_io_info Jaegeuk Kim 2015-05-02 0:48 ` [PATCH 11/19] f2fs: move get_page for gc victims Jaegeuk Kim 2015-05-02 0:48 ` Jaegeuk Kim 2015-05-02 0:48 ` [PATCH 12/19] f2fs: introduce dot and dotdot name check Jaegeuk Kim 2015-05-02 0:48 ` Jaegeuk Kim 2015-05-02 0:48 ` [PATCH 13/19] f2fs: fix race on allocating and deallocating a dentry block Jaegeuk Kim 2015-05-02 0:48 ` Jaegeuk Kim 2015-05-02 0:48 ` [PATCH 14/19] f2fs: add need_dentry_mark Jaegeuk Kim 2015-05-02 0:48 ` Jaegeuk Kim 2015-05-02 0:48 ` [PATCH 15/19] f2fs: fix counting the number of inline_data inodes Jaegeuk Kim 2015-05-02 0:48 ` Jaegeuk Kim 2015-05-02 0:48 ` [PATCH 16/19] f2fs: split find_data_page according to specific purposes Jaegeuk Kim 2015-05-02 0:48 ` [PATCH 17/19] f2fs: revmove spin_lock for write_orphan_inodes Jaegeuk Kim 2015-05-02 0:48 ` Jaegeuk Kim 2015-05-02 0:48 ` [PATCH 18/19] f2fs: introduce discard_map for f2fs_trim_fs Jaegeuk Kim 2015-05-02 0:48 ` Jaegeuk Kim 2015-05-02 0:48 ` [PATCH 19/19] f2fs: issue discard with finally produced len and minlen Jaegeuk Kim 2015-05-02 0:48 ` Jaegeuk Kim
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