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[PATCH] FAT: miss-sync issues on sync mount (miss-sync on write)

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This patch fixes miss-sync issue on write() system call.  This updates
inode attrs flags, mtime and ctime on every comit_write call, due to
locking.

Signed-off-by: Hiroyuki Machida <machida@sm.sony.co.jp>
Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
OGAWA Hirofumi
2005-09-16 19:28:13 -07:00
committed by Linus Torvalds
parent 4fb3a53860
commit ef402268f7
2 changed files with 16 additions and 36 deletions
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37
fs/fat/file.c
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@@ -12,39 +12,6 @@
#include <linux/smp_lock.h>
#include <linux/buffer_head.h>
static ssize_t fat_file_aio_write(struct kiocb *iocb, const char __user *buf,
size_t count, loff_t pos)
{
struct inode *inode = iocb->ki_filp->f_dentry->d_inode;
int retval;
retval = generic_file_aio_write(iocb, buf, count, pos);
if (retval > 0) {
inode->i_mtime = inode->i_ctime = CURRENT_TIME_SEC;
MSDOS_I(inode)->i_attrs |= ATTR_ARCH;
mark_inode_dirty(inode);
// check the locking rules
// if (IS_SYNC(inode))
// fat_sync_inode(inode);
}
return retval;
}
static ssize_t fat_file_writev(struct file *filp, const struct iovec *iov,
unsigned long nr_segs, loff_t *ppos)
{
struct inode *inode = filp->f_dentry->d_inode;
int retval;
retval = generic_file_writev(filp, iov, nr_segs, ppos);
if (retval > 0) {
inode->i_mtime = inode->i_ctime = CURRENT_TIME_SEC;
MSDOS_I(inode)->i_attrs |= ATTR_ARCH;
mark_inode_dirty(inode);
}
return retval;
}
int fat_generic_ioctl(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg)
{
@@ -148,9 +115,9 @@ struct file_operations fat_file_operations = {
.read = do_sync_read,
.write = do_sync_write,
.readv = generic_file_readv,
.writev = fat_file_writev,
.writev = generic_file_writev,
.aio_read = generic_file_aio_read,
.aio_write = fat_file_aio_write,
.aio_write = generic_file_aio_write,
.mmap = generic_file_mmap,
.ioctl = fat_generic_ioctl,
.fsync = file_fsync,