diff options
| author | Chris Mason <mason@suse.com> | 2006-09-29 02:00:03 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-09-29 09:18:12 -0700 |
| commit | ae78bf9c4f5fde3c67e2829505f195d7347ce3e4 (patch) | |
| tree | b9376237e596ed7e95db35b9ccf1ad3177b10460 /fs/fat/file.c | |
| parent | 6b77df08a36d989f7dd00ccb6a026a0e96170d16 (diff) | |
[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>
Diffstat (limited to 'fs/fat/file.c')
| -rw-r--r-- | fs/fat/file.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/fs/fat/file.c b/fs/fat/file.c index 1ee25232e6a..d50fc47169c 100644 --- a/fs/fat/file.c +++ b/fs/fat/file.c @@ -13,6 +13,7 @@ #include <linux/smp_lock.h> #include <linux/buffer_head.h> #include <linux/writeback.h> +#include <linux/blkdev.h> int fat_generic_ioctl(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg) @@ -112,6 +113,16 @@ int fat_generic_ioctl(struct inode *inode, struct file *filp, } } +static int fat_file_release(struct inode *inode, struct file *filp) +{ + if ((filp->f_mode & FMODE_WRITE) && + MSDOS_SB(inode->i_sb)->options.flush) { + fat_flush_inodes(inode->i_sb, inode, NULL); + blk_congestion_wait(WRITE, HZ/10); + } + return 0; +} + const struct file_operations fat_file_operations = { .llseek = generic_file_llseek, .read = do_sync_read, @@ -121,6 +132,7 @@ const struct file_operations fat_file_operations = { .aio_read = generic_file_aio_read, .aio_write = generic_file_aio_write, .mmap = generic_file_mmap, + .release = fat_file_release, .ioctl = fat_generic_ioctl, .fsync = file_fsync, .sendfile = generic_file_sendfile, @@ -289,6 +301,7 @@ void fat_truncate(struct inode *inode) lock_kernel(); fat_free(inode, nr_clusters); unlock_kernel(); + fat_flush_inodes(inode->i_sb, inode, NULL); } struct inode_operations fat_file_inode_operations = { |