Commit Graph

24 Commits

Author SHA1 Message Date
Matthew Wilcox (Oracle)
c9d13ea12a fs: Convert mpage_readpage to mpage_read_folio
mpage_readpage still works in terms of pages, and has not been audited
for correctness with large folios, so include an assertion that the
filesystem is not passing it large folios.  Convert all the filesystems
to call mpage_read_folio() instead of mpage_readpage().

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
2022-07-22 11:43:54 +09:00
Matthew Wilcox (Oracle)
7bcf79cf5a fs: Remove flags parameter from aops->write_begin
There are no more aop flags left, so remove the parameter.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
2022-07-22 11:43:51 +09:00
Matthew Wilcox (Oracle)
ff027ab15c fs: Remove aop flags parameter from cont_write_begin()
There are no more aop flags left, so remove the parameter.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
2022-07-22 11:43:49 +09:00
Yuezhang Mo
8d627e3001 exfat: remove duplicate write inode for extending dir/file
Since the timestamps need to be updated, the directory entries
will be updated by mark_inode_dirty() whether or not a new
cluster is allocated for the file or directory, so there is no
need to use __exfat_write_inode() to update the directory entries
when allocating a new cluster for a file or directory.

Signed-off-by: Yuezhang Mo <Yuezhang.Mo@sony.com>
Reviewed-by: Andy Wu <Andy.Wu@sony.com>
Reviewed-by: Aoyama Wataru <wataru.aoyama@sony.com>
Reviewed-by: Daniel Palmer <daniel.palmer@sony.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
2022-07-22 11:43:43 +09:00
Yuezhang Mo
63e1c4f7c9 exfat: remove duplicate write inode for truncating file
This commit moves updating file attributes and timestamps before
calling __exfat_write_inode(), so that all updates of the inode
had been written by __exfat_write_inode(), mark_inode_dirty() is
unneeded.

Signed-off-by: Yuezhang Mo <Yuezhang.Mo@sony.com>
Reviewed-by: Andy Wu <Andy.Wu@sony.com>
Reviewed-by: Aoyama Wataru <wataru.aoyama@sony.com>
Reviewed-by: Daniel Palmer <daniel.palmer@sony.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
2022-07-22 11:43:39 +09:00
Yuezhang Mo
56a5afdffa exfat: reuse __exfat_write_inode() to update directory entry
__exfat_write_inode() is used to update file and stream directory
entries, except for file->start_clu and stream->flags.

This commit moves update file->start_clu and stream->flags to
__exfat_write_inode() and reuse __exfat_write_inode() to update
directory entries.

Signed-off-by: Yuezhang Mo <Yuezhang.Mo@sony.com>
Reviewed-by: Andy Wu <Andy.Wu@sony.com>
Reviewed-by: Aoyama Wataru <wataru.aoyama@sony.com>
Reviewed-by: Daniel Palmer <daniel.palmer@sony.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
2022-07-21 15:40:30 +09:00
Matthew Wilcox (Oracle)
e145a5f7cc exfat: fs: Convert __set_page_dirty_buffers to block_dirty_folio
Convert all callers; mostly this is just changing the aops to point
at it, but a few implementations need a little more work.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Acked-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Tested-by: Mike Marshall <hubcap@omnibond.com> # orangefs
Tested-by: David Howells <dhowells@redhat.com> # afs
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
2022-05-11 15:45:27 +09:00
Matthew Wilcox (Oracle)
1270e7479b exfat: fs: Turn block_invalidatepage into block_invalidate_folio
Remove special-casing of a NULL invalidatepage, since there is no
more block_invalidatepage.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Acked-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Tested-by: Mike Marshall <hubcap@omnibond.com> # orangefs
Tested-by: David Howells <dhowells@redhat.com> # afs
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
2022-05-11 15:45:26 +09:00
Christoph Hellwig
bf7b4057f4 exfat: mm: require ->set_page_dirty to be explicitly wired up
Remove the CONFIG_BLOCK default to __set_page_dirty_buffers and just wire
that method up for the missing instances.

[hch@lst.de: ecryptfs: add a ->set_page_dirty cludge]
  Link: https://lkml.kernel.org/r/20210624125250.536369-1-hch@lst.de

Link: https://lkml.kernel.org/r/20210614061512.3966143-4-hch@lst.de
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Jan Kara <jack@suse.cz>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Tyler Hicks <code@tyhicks.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
2022-05-11 15:33:16 +09:00
Christophe Vu-Brugier
032c9d34c8 exfat: reuse exfat_inode_info variable instead of calling EXFAT_I()
Also add a local "struct exfat_inode_info *ei" variable to
exfat_truncate() to simplify the code.

Signed-off-by: Christophe Vu-Brugier <christophe.vu-brugier@seagate.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
2021-11-03 11:09:20 +09:00
Christophe Vu-Brugier
9c8e844629 exfat: fix typos in comments
Fix typos in comments.

Signed-off-by: Christophe Vu-Brugier <christophe.vu-brugier@seagate.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
2021-11-03 11:09:16 +09:00
Sungjong Seo
0da4dbe15d exfat: fix incorrect loading of i_blocks for large files
When calculating i_blocks, there was a mistake that was masked with a 32-bit
variable. So i_blocks for files larger than 4 GiB had incorrect values.
Mask with a 64-bit variable instead of 32-bit one.

Fixes: 5f2aa075070c ("exfat: add inode operations")
Cc: stable@vger.kernel.org # v5.7+
Reported-by: Ganapathi Kamath <hgkamath@hotmail.com>
Signed-off-by: Sungjong Seo <sj1557.seo@samsung.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
2021-10-19 13:16:49 +09:00
Hyeongseok Kim
4728c613cf exfat: improve write performance when dirsync enabled
Degradation of write speed caused by frequent disk access for cluster
bitmap update on every cluster allocation could be improved by
selective syncing bitmap buffer. Change to flush bitmap buffer only
for the directory related operations.

Signed-off-by: Hyeongseok Kim <hyeongseok@gmail.com>
Acked-by: Sungjong Seo <sj1557.seo@samsung.com>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
2021-03-25 08:10:51 +09:00
Namjae Jeon
485d677638 exfat: fix use of uninitialized spinlock on error path
syzbot reported warning message:

Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1d6/0x29e lib/dump_stack.c:118
 register_lock_class+0xf06/0x1520 kernel/locking/lockdep.c:893
 __lock_acquire+0xfd/0x2ae0 kernel/locking/lockdep.c:4320
 lock_acquire+0x148/0x720 kernel/locking/lockdep.c:5029
 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline]
 _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:151
 spin_lock include/linux/spinlock.h:354 [inline]
 exfat_cache_inval_inode+0x30/0x280 fs/exfat/cache.c:226
 exfat_evict_inode+0x124/0x270 fs/exfat/inode.c:660
 evict+0x2bb/0x6d0 fs/inode.c:576
 exfat_fill_super+0x1e07/0x27d0 fs/exfat/super.c:681
 get_tree_bdev+0x3e9/0x5f0 fs/super.c:1342
 vfs_get_tree+0x88/0x270 fs/super.c:1547
 do_new_mount fs/namespace.c:2875 [inline]
 path_mount+0x179d/0x29e0 fs/namespace.c:3192
 do_mount fs/namespace.c:3205 [inline]
 __do_sys_mount fs/namespace.c:3413 [inline]
 __se_sys_mount+0x126/0x180 fs/namespace.c:3390
 do_syscall_64+0x31/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9

If exfat_read_root() returns an error, spinlock is used in
exfat_evict_inode() without initialization. This patch combines
exfat_cache_init_inode() with exfat_inode_init_once() to initialize
spinlock by slab constructor.

Fixes: c35b6810c495 ("exfat: add exfat cache")
Cc: stable@vger.kernel.org # v5.7+
Reported-by: syzbot <syzbot+b91107320911a26c9a95@syzkaller.appspotmail.com>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
2020-10-12 22:56:52 +09:00
Tetsuhiro Kohada
03b3db6894 exfat: remove 'rwoffset' in exfat_inode_info
Remove 'rwoffset' in exfat_inode_info and replace it with the parameter of
exfat_readdir().
Since rwoffset is referenced only by exfat_readdir(), it is not necessary
a exfat_inode_info's member.
Also, change cpos to point to the next of entry-set, and return the index
of dir-entry via dir_entry->entry.

Signed-off-by: Tetsuhiro Kohada <kohada.t2@gmail.com>
Acked-by: Sungjong Seo <sj1557.seo@samsung.com>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
2020-10-12 21:38:48 +09:00
Tetsuhiro Kohada
90797eb877 exfat: replace memcpy with structure assignment
Use structure assignment instead of memcpy.

Signed-off-by: Tetsuhiro Kohada <kohada.t2@gmail.com>
Acked-by: Sungjong Seo <sj1557.seo@samsung.com>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
2020-10-12 21:38:45 +09:00
Tetsuhiro Kohada
bfea1fb6bb exfat: retain 'VolumeFlags' properly
MediaFailure and VolumeDirty should be retained if these are set before
mounting.

In '3.1.13.3 Media Failure Field' of exfat specification describe:

 If, upon mounting a volume, the value of this field is 1,
 implementations which scan the entire volume for media failures and
 record all failures as "bad" clusters in the FAT (or otherwise resolve
 media failures) may clear the value of  this field to 0.

Therefore, We should not clear MediaFailure without scanning volume.

In '8.1 Recommended Write Ordering' of exfat specification describe:

 Clear the value of the VolumeDirty field to 0, if its value prior to
 the first step was 0.

Therefore, We should not clear VolumeDirty after mounting.
Also rename ERR_MEDIUM to MEDIA_FAILURE.

Signed-off-by: Tetsuhiro Kohada <kohada.t2@gmail.com>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
2020-09-10 09:02:45 +09:00
Tetsuhiro Kohada
f9c8dcdd04 exfat: add error check when updating dir-entries
Add error check when synchronously updating dir-entries.

Suggested-by: Sungjong Seo <sj1557.seo@samsung.com>
Signed-off-by: Tetsuhiro Kohada <kohada.t2@gmail.com>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
2020-07-03 12:40:18 +09:00
Matthew Wilcox (Oracle)
b457fd79f9 fs: convert mpage_readpages to mpage_readahead
Implement the new readahead aop and convert all callers (block_dev,
exfat, ext2, fat, gfs2, hpfs, isofs, jfs, nilfs2, ocfs2, omfs, qnx6,
reiserfs & udf).

The callers are all trivial except for GFS2 & OCFS2.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Junxiao Bi <junxiao.bi@oracle.com> # ocfs2
Reviewed-by: Joseph Qi <joseph.qi@linux.alibaba.com> # ocfs2
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: John Hubbard <jhubbard@nvidia.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: William Kucharski <william.kucharski@oracle.com>
Cc: Chao Yu <yuchao0@huawei.com>
Cc: Cong Wang <xiyou.wangcong@gmail.com>
Cc: Darrick J. Wong <darrick.wong@oracle.com>
Cc: Eric Biggers <ebiggers@google.com>
Cc: Gao Xiang <gaoxiang25@huawei.com>
Cc: Jaegeuk Kim <jaegeuk@kernel.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Zi Yan <ziy@nvidia.com>
Cc: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Cc: Miklos Szeredi <mszeredi@redhat.com>
Link: http://lkml.kernel.org/r/20200414150233.24495-17-willy@infradead.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
2020-06-17 22:08:28 +09:00
Tetsuhiro Kohada
9f140e2c22 exfat: optimize dir-cache
Optimize directory access based on exfat_entry_set_cache.
 - Hold bh instead of copied d-entry.
 - Modify bh->data directly instead of the copied d-entry.
 - Write back the retained bh instead of rescanning the d-entry-set.
And
 - Remove unused cache related definitions.

Signed-off-by: Tetsuhiro Kohada <kohada.tetsuhiro@dc.mitsubishielectric.co.jp>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
2020-06-04 15:42:34 +09:00
Tetsuhiro Kohada
9772742131 exfat: replace 'time_ms' with 'time_cs'
Replace time_ms  with time_cs in the file directory entry structure
and related functions.

The unit of create_time_ms/modify_time_ms in File Directory Entry are not
'milli-second', but 'centi-second'.
The exfat specification uses the term '10ms', but instead use 'cs' as in
msdos_fs.h.

Signed-off-by: Tetsuhiro Kohada <kohada.t2@gmail.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
2020-05-03 23:11:32 +09:00
Namjae Jeon
4e3295fb51 exfat: fix build support from 4.1 to liunx 5.5 kernel
Signed-off-by: Namjae Jeon <linkinjeon@gmail.com>
2020-02-08 19:13:34 +09:00
Namjae Jeon
f53d47cb58 exfat: linux 4.16 kernel build support
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
2020-02-04 09:18:10 +09:00
Namjae Jeon
9273f3d387 exfat: initial commit
Signed-off-by: Namjae Jeon <linkinjeon@gmail.com>
2020-02-03 21:47:19 +09:00