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| author | Boaz Harrosh <bharrosh@panasas.com> | 2009-06-14 16:52:10 +0300 |
|---|---|---|
| committer | Boaz Harrosh <bharrosh@panasas.com> | 2009-06-21 17:53:47 +0300 |
| commit | baaf94cdc7fe1c61e3c660a3b055724fd9d0a034 (patch) | |
| tree | b6f1704f38e39801df39b231e19b514d3b4b0ddf /fs | |
| parent | 27d2e1491985e95c486d991302e399f5c584b4eb (diff) | |
| download | blackbird-op-linux-baaf94cdc7fe1c61e3c660a3b055724fd9d0a034.tar.gz blackbird-op-linux-baaf94cdc7fe1c61e3c660a3b055724fd9d0a034.zip | |
exofs: Avoid using file_fsync()
The use of file_fsync() in exofs_file_sync() is not necessary since it
does some extra stuff not used by exofs. Open code just the parts that
are currently needed.
TODO: Farther optimization can be done to sync the sb only on inode
update of new files, Usually the sb update is not needed in exofs.
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/exofs/exofs.h | 3 | ||||
| -rw-r--r-- | fs/exofs/file.c | 17 | ||||
| -rw-r--r-- | fs/exofs/super.c | 2 |
3 files changed, 16 insertions, 6 deletions
diff --git a/fs/exofs/exofs.h b/fs/exofs/exofs.h index c413b74ecf31..5ec72e020b22 100644 --- a/fs/exofs/exofs.h +++ b/fs/exofs/exofs.h @@ -154,6 +154,9 @@ ino_t exofs_parent_ino(struct dentry *child); int exofs_set_link(struct inode *, struct exofs_dir_entry *, struct page *, struct inode *); +/* super.c */ +int exofs_sync_fs(struct super_block *sb, int wait); + /********************* * operation vectors * *********************/ diff --git a/fs/exofs/file.c b/fs/exofs/file.c index c6810038d637..839b9dc1e70f 100644 --- a/fs/exofs/file.c +++ b/fs/exofs/file.c @@ -45,16 +45,23 @@ static int exofs_file_fsync(struct file *filp, struct dentry *dentry, { int ret; struct address_space *mapping = filp->f_mapping; + struct inode *inode = dentry->d_inode; + struct super_block *sb; ret = filemap_write_and_wait(mapping); if (ret) return ret; - /*Note: file_fsync below also calles sync_blockdev, which is a no-op - * for exofs, but other then that it does sync_inode and - * sync_superblock which is what we need here. - */ - return file_fsync(filp, dentry, datasync); + /* sync the inode attributes */ + ret = write_inode_now(inode, 1); + + /* This is a good place to write the sb */ + /* TODO: Sechedule an sb-sync on create */ + sb = inode->i_sb; + if (sb->s_dirt) + exofs_sync_fs(sb, 1); + + return ret; } static int exofs_flush(struct file *file, fl_owner_t id) diff --git a/fs/exofs/super.c b/fs/exofs/super.c index e47b38e55a26..a343b4ea62f6 100644 --- a/fs/exofs/super.c +++ b/fs/exofs/super.c @@ -198,7 +198,7 @@ static const struct export_operations exofs_export_ops; /* * Write the superblock to the OSD */ -static int exofs_sync_fs(struct super_block *sb, int wait) +int exofs_sync_fs(struct super_block *sb, int wait) { struct exofs_sb_info *sbi; struct exofs_fscb *fscb; |
