linux.git/fs/fat/misc.c, branch v2.6.35

fatfs: ratelimit corruption report

2010-05-25T15:07:04+00:00

Signed-off-by: OGAWA Hirofumi 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

fatfs: use common time_to_tm in fat_time_unix2fat()

2009-12-16T15:20:06+00:00

It is not necessary to write custom code for convert calendar time to
broken-down time.  time_to_tm() is more generic to do that.

Signed-off-by: Zhao Lei 
Cc: OGAWA Hirofumi 
Cc: Thomas Gleixner 
Cc: Ingo Molnar 
Cc: Pavel Machek 
Cc: Andi Kleen 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Merge git://git.kernel.org/pub/scm/linux/kernel/git/hirofumi/fatfs-2.6

2009-09-30T16:31:14+00:00

* git://git.kernel.org/pub/scm/linux/kernel/git/hirofumi/fatfs-2.6:
  fat: Check s_dirt in fat_sync_fs()
  vfat: change the default from shortname=lower to shortname=mixed
  fat/nls: Fix handling of utf8 invalid char

fat: Check s_dirt in fat_sync_fs()

2009-09-19T16:35:25+00:00

If we didn't check sb->s_dirt, it will update the FSINFO
unconditionally. It will reduce the filetime of flash base device.

So, this checks sb->s_dirt. sb->s_dirt is racy, however FSINFO is just
hint. So even if there is race, and we hit it, it would not become big
problem.

And this also is as workaround of suspend problem.

Signed-off-by: OGAWA Hirofumi

fat: Opencode sync_page_range_nolock()

2009-09-14T15:08:17+00:00

fat_cont_expand() is the only user of sync_page_range_nolock(). It's also the
only user of generic_osync_inode() which does not have a file open.  So
opencode needed actions for FAT so that we can convert generic_osync_inode() to
a standard syncing path.

Update a comment about generic_osync_inode().

CC: OGAWA Hirofumi 
Signed-off-by: Jan Kara

FAT: add 'errors' mount option

2009-06-03T17:34:51+00:00

On severe errors FAT remounts itself in read-only mode. Allow to
specify FAT fs desired behavior through 'errors' mount option:
panic, continue or remount read-only.

`mount -t [fat|vfat] -o errors=[panic,remount-ro,continue] \
	 `

This is analog to ext2 fs 'errors' mount option.

Signed-off-by: Denis Karpov 
Signed-off-by: OGAWA Hirofumi

fat: i_blocks warning fix

2008-11-06T23:41:22+00:00

blkcnt_t type depends on CONFIG_LSF. Use unsigned long long always for
printk().  But lazy to type it, so add "llu" and use it.

Signed-off-by: OGAWA Hirofumi 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

fat: Fix and cleanup timestamp conversion

2008-11-06T23:41:20+00:00

This cleans date_dos2unix()/fat_date_unix2dos() up. New code should be
much more readable.

And this fixes those old functions. Those doesn't handle 2100
correctly. 2100 isn't leap year, but old one handles it as leap year.
Also, with this, centi sec is handled and is fixed.

Signed-off-by: OGAWA Hirofumi 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

fat: split include/msdos_fs.h

2008-11-06T23:41:20+00:00

This splits __KERNEL__ stuff in include/msdos_fs.h into fs/fat/fat.h.

Signed-off-by: OGAWA Hirofumi 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

fatfs: add UTC timestamp option

2008-07-25T17:53:34+00:00

Provide a new mount option ("tz=UTC") for DOS (vfat/msdos) filesystems,
allowing timestamps to be in coordinated universal time (UTC) rather than
local time in applications where doing this is advantageous.

In particular, portable devices that use fat/vfat (such as digital
cameras) can benefit from using UTC in their internal clocks, thus
avoiding daylight saving time errors and general time ambiguity issues.
The user of the device does not have to worry about changing the time when
moving from place or when daylight saving changes.

The new mount option, when set, disables the counter-adjustment that Linux
currently makes to FAT timestamp info in anticipation of the normal
userspace time zone correction.  When used in this new mode, all daylight
saving time and time zone handling is done in userspace as is normal for
many other filesystems (like ext3).  The default mode, which remains
unchanged, is still appropriate when mounting volumes written in Windows
(because of its use of local time).

I originally based this patch on one submitted last year by Paul Collins,
but I updated it to work with current source and changed variable/option
naming.  Ogawa Hirofumi (who maintains these filesystems) and I discussed
this patch at length on lkml, and he suggested using the option name in
the attached version of the patch.  Barry Bouwsma pointed out a good
addition to the patch as well.

Signed-off-by: Joe Peterson 
Signed-off-by: Paul Collins 
Acked-by: OGAWA Hirofumi 
Cc: Barry Bouwsma 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds