linux-toradex.git/fs/exfat/dir.c, branch v5.12

exfat: remove 'rwoffset' in exfat_inode_info

2020-10-21T23:29:11+00:00

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 
Acked-by: Sungjong Seo 
Signed-off-by: Namjae Jeon

exfat: replace memcpy with structure assignment

2020-10-21T23:29:11+00:00

Use structure assignment instead of memcpy.

Signed-off-by: Tetsuhiro Kohada 
Acked-by: Sungjong Seo 
Signed-off-by: Namjae Jeon

exfat: eliminate dead code in exfat_find()

2020-10-21T23:29:11+00:00

The exfat_find_dir_entry() called by exfat_find() doesn't return -EEXIST.
Therefore, the root-dir information setting is never executed.

Signed-off-by: Tetsuhiro Kohada 
Acked-by: Sungjong Seo 
Signed-off-by: Namjae Jeon

exfat: add error check when updating dir-entries

2020-08-11T23:31:12+00:00

Add error check when synchronously updating dir-entries.

Suggested-by: Sungjong Seo 
Signed-off-by: Tetsuhiro Kohada 
Signed-off-by: Namjae Jeon

exfat: write multiple sectors at once

2020-08-11T23:31:11+00:00

Write multiple sectors at once when updating dir-entries.
Add exfat_update_bhs() for that. It wait for write completion once
instead of sector by sector.
It's only effective if sync enabled.

Signed-off-by: Tetsuhiro Kohada 
Signed-off-by: Namjae Jeon

exfat: remove EXFAT_SB_DIRTY flag

2020-08-11T23:31:10+00:00

This flag is set/reset in exfat_put_super()/exfat_sync_fs()
to avoid sync_blockdev().
- exfat_put_super():
Before calling this, the VFS has already called sync_filesystem(),
so sync is never performed here.
- exfat_sync_fs():
After calling this, the VFS calls sync_blockdev(), so, it is meaningless
to check EXFAT_SB_DIRTY or to bypass sync_blockdev() here.

Remove the EXFAT_SB_DIRTY check to ensure synchronization.
And remove the code related to the flag.

Signed-off-by: Tetsuhiro Kohada 
Reviewed-by: Sungjong Seo 
Signed-off-by: Namjae Jeon

exfat: fix wrong hint_stat initialization in exfat_find_dir_entry()

2020-07-21T01:44:10+00:00

We found the wrong hint_stat initialization in exfat_find_dir_entry().
It should be initialized when cluster is EXFAT_EOF_CLUSTER.

Fixes: ca06197382bd ("exfat: add directory operations")
Cc: stable@vger.kernel.org # v5.7
Reviewed-by: Sungjong Seo 
Signed-off-by: Namjae Jeon

exfat: flush dirty metadata in fsync

2020-06-29T08:11:18+00:00

generic_file_fsync() exfat used could not guarantee the consistency of
a file because it has flushed not dirty metadata but only dirty data pages
for a file.

Instead of that, use exfat_file_fsync() for files and directories so that
it guarantees to commit both the metadata and data pages for a file.

Signed-off-by: Sungjong Seo 
Signed-off-by: Namjae Jeon

exfat: Set the unused characters of FileName field to the value 0000h

2020-06-29T08:11:00+00:00

Some fsck tool complain that padding part of the FileName field
is not set to the value 0000h. So let's maintain filesystem cleaner,
as exfat's spec. recommendation.

Signed-off-by: Hyeongseok.Kim 
Reviewed-by: Sungjong Seo 
Signed-off-by: Namjae Jeon

exfat: standardize checksum calculation

2020-06-09T07:49:25+00:00

To clarify that it is a 16-bit checksum, the parts related to the 16-bit
checksum are renamed and change type to u16.
Furthermore, replace checksum calculation in exfat_load_upcase_table()
with exfat_calc_checksum32().

Signed-off-by: Tetsuhiro Kohada 
Reviewed-by: Sungjong Seo 
Signed-off-by: Namjae Jeon