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| author | Joern Engel <joern@logfs.org> | 2010-03-04 21:36:19 +0100 |
|---|---|---|
| committer | Joern Engel <joern@logfs.org> | 2010-03-04 21:36:19 +0100 |
| commit | c6d3830140f1d56b07d8ab56a6e14ca3c492a39a (patch) | |
| tree | 8dd9923b4217f6f7dc2735356d112fdcfa277852 /fs/logfs/segment.c | |
| parent | 9421502b4fc894cc477be8fc49776830e37ca157 (diff) | |
| download | op-kernel-dev-c6d3830140f1d56b07d8ab56a6e14ca3c492a39a.zip op-kernel-dev-c6d3830140f1d56b07d8ab56a6e14ca3c492a39a.tar.gz | |
[LogFS] Only write journal if dirty
This prevents unnecessary journal writes. More importantly it prevents
an oops due to a journal write on failed mount.
Diffstat (limited to 'fs/logfs/segment.c')
| -rw-r--r-- | fs/logfs/segment.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/fs/logfs/segment.c b/fs/logfs/segment.c index 664cd0d..1a14f99 100644 --- a/fs/logfs/segment.c +++ b/fs/logfs/segment.c @@ -352,7 +352,8 @@ int logfs_segment_write(struct inode *inode, struct page *page, int ret; void *buf; - BUG_ON(logfs_super(sb)->s_flags & LOGFS_SB_FLAG_SHUTDOWN); + super->s_flags |= LOGFS_SB_FLAG_DIRTY; + BUG_ON(super->s_flags & LOGFS_SB_FLAG_SHUTDOWN); do_compress = logfs_inode(inode)->li_flags & LOGFS_IF_COMPRESSED; if (shadow->gc_level != 0) { /* temporarily disable compression for indirect blocks */ @@ -653,11 +654,13 @@ int logfs_segment_read(struct inode *inode, struct page *page, int logfs_segment_delete(struct inode *inode, struct logfs_shadow *shadow) { struct super_block *sb = inode->i_sb; + struct logfs_super *super = logfs_super(sb); struct logfs_object_header h; u16 len; int err; - BUG_ON(logfs_super(sb)->s_flags & LOGFS_SB_FLAG_SHUTDOWN); + super->s_flags |= LOGFS_SB_FLAG_DIRTY; + BUG_ON(super->s_flags & LOGFS_SB_FLAG_SHUTDOWN); BUG_ON(shadow->old_ofs & LOGFS_FULLY_POPULATED); if (!shadow->old_ofs) return 0; |
