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authorBoaz Harrosh <bharrosh@panasas.com>2011-02-03 17:53:25 +0200
committerBoaz Harrosh <bharrosh@panasas.com>2011-03-15 15:02:51 +0200
commit1cea312ad49d9cb964179a784fedb1fcfe396283 (patch)
tree27c45af006b48b1a079698605ea9007398f652b5 /fs/exofs/file.c
parent9ed96484311b89360b80a4181d856cbdb21630fd (diff)
exofs: Write sbi->s_nextid as part of the Create command
Before when creating a new inode, we'd set the sb->s_dirt flag, and sometime later the system would write out s_nextid as part of the sb_info. Also on inode sync we would force the sb sync as well. Define the s_nextid as a new partition attribute and set it every time we create a new object. At mount we read it from it's new place. We now never set sb->s_dirt anywhere in exofs. write_super is actually never called. The call to exofs_write_super from exofs_put_super is also removed because the VFS always calls ->sync_fs before calling ->put_super twice. To stay backward-and-forward compatible we also write the old s_nextid in the super_block object at unmount, and support zero length attribute on mount. This also fixes a BUG where in layouts when group_width was not a divisor of EXOFS_SUPER_ID (0x10000) the s_nextid was not read from the device it was written to. Because of the sliding window layout trick, and because the read was always done from the 0 device but the write was done via the raid engine that might slide the device view. Now we read and write through the raid engine. Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Diffstat (limited to 'fs/exofs/file.c')
-rw-r--r--fs/exofs/file.c11
1 files changed, 1 insertions, 10 deletions
diff --git a/fs/exofs/file.c b/fs/exofs/file.c
index 4c0d6bac914..45ca323d836 100644
--- a/fs/exofs/file.c
+++ b/fs/exofs/file.c
@@ -45,17 +45,8 @@ static int exofs_release_file(struct inode *inode, struct file *filp)
static int exofs_file_fsync(struct file *filp, int datasync)
{
int ret;
- struct inode *inode = filp->f_mapping->host;
- struct super_block *sb;
-
- ret = sync_inode_metadata(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);
+ ret = sync_inode_metadata(filp->f_mapping->host, 1);
return ret;
}