[PATCH] add -o flush for fat

Fat is commonly used on removable media.  Mounting with -o flush tells the
FS to write things to disk as quickly as possible.  It is like -o sync, but
much faster (and not as safe).

Signed-off-by: Chris Mason <mason@suse.com>
Cc: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 10 insertions, 1 deletions

diff --git a/fs/msdos/namei.c b/fs/msdos/namei.c
index 9e44158a7540..d220165d4918 100644
--- a/fs/msdos/namei.c
+++ b/fs/msdos/namei.c
@@ -280,7 +280,7 @@ static int msdos_create(struct inode *dir, struct dentry *dentry, int mode,
                         struct nameidata *nd)
 {
         struct super_block *sb = dir->i_sb;
-        struct inode *inode;
+        struct inode *inode = NULL;
         struct fat_slot_info sinfo;
         struct timespec ts;
         unsigned char msdos_name[MSDOS_NAME];
@@ -316,6 +316,8 @@ static int msdos_create(struct inode *dir, struct dentry *dentry, int mode,
         d_instantiate(dentry, inode);
 out:
         unlock_kernel();
+        if (!err)
+                err = fat_flush_inodes(sb, dir, inode);
         return err;
 }
 
@@ -348,6 +350,8 @@ static int msdos_rmdir(struct inode *dir, struct dentry *dentry)
         fat_detach(inode);
 out:
         unlock_kernel();
+        if (!err)
+                err = fat_flush_inodes(inode->i_sb, dir, inode);
 
         return err;
 }
@@ -401,6 +405,7 @@ static int msdos_mkdir(struct inode *dir, struct dentry *dentry, int mode)
         d_instantiate(dentry, inode);
 
         unlock_kernel();
+        fat_flush_inodes(sb, dir, inode);
         return 0;
 
 out_free:
@@ -430,6 +435,8 @@ static int msdos_unlink(struct inode *dir, struct dentry *dentry)
         fat_detach(inode);
 out:
         unlock_kernel();
+        if (!err)
+                err = fat_flush_inodes(inode->i_sb, dir, inode);
 
         return err;
 }
@@ -635,6 +642,8 @@ static int msdos_rename(struct inode *old_dir, struct dentry *old_dentry,
                               new_dir, new_msdos_name, new_dentry, is_hid);
 out:
         unlock_kernel();
+        if (!err)
+                err = fat_flush_inodes(old_dir->i_sb, old_dir, new_dir);
         return err;
 }