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UBIFS: do not write orphans back

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Orphan inodes are deleted inodes which will disappear after FS
re-mount. There is not need to write orphan inodes back, because
they are not needed on the flash media.

So optimize orphans a little by not writing them back. Just mark
them as clean, free the budget, and report success to VFS.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
This commit is contained in:
Artem Bityutskiy
2008-07-22 11:52:52 +03:00
parent ff46d7b3e0
commit fbfa6c884a
1 changed files with 13 additions and 5 deletions
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18
fs/ubifs/super.c
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@@ -278,7 +278,7 @@ static void ubifs_destroy_inode(struct inode *inode)
*/ */
static int ubifs_write_inode(struct inode *inode, int wait) static int ubifs_write_inode(struct inode *inode, int wait)
{ {
int err; int err = 0;
struct ubifs_info *c = inode->i_sb->s_fs_info; struct ubifs_info *c = inode->i_sb->s_fs_info;
struct ubifs_inode *ui = ubifs_inode(inode); struct ubifs_inode *ui = ubifs_inode(inode);
@@ -299,10 +299,18 @@ static int ubifs_write_inode(struct inode *inode, int wait)
return 0; return 0;
} }
dbg_gen("inode %lu, mode %#x", inode->i_ino, (int)inode->i_mode); /*
err = ubifs_jnl_write_inode(c, inode, 0); * As an optimization, do not write orphan inodes to the media just
if (err) * because this is not needed.
ubifs_err("can't write inode %lu, error %d", inode->i_ino, err); */
dbg_gen("inode %lu, mode %#x, nlink %u",
inode->i_ino, (int)inode->i_mode, inode->i_nlink);
if (inode->i_nlink) {
err = ubifs_jnl_write_inode(c, inode, 0);
if (err)
ubifs_err("can't write inode %lu, error %d",
inode->i_ino, err);
}
ui->dirty = 0; ui->dirty = 0;
mutex_unlock(&ui->ui_mutex); mutex_unlock(&ui->ui_mutex);