kernel/linux.git/fs/exfat/misc.c, branch v5.15.208

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: 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

exfat: add boot region verification

2020-06-09T07:49:19+00:00

Add Boot-Regions verification specified in exFAT specification. Note that the checksum type is strongly related to the raw structure, so the'u32 'type is used to clarify the number of bits. Signed-off-by: Tetsuhiro Kohada Reviewed-by: Sungjong Seo Signed-off-by: Namjae Jeon

exfat: replace 'time_ms' with 'time_cs'

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

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 Signed-off-by: Namjae Jeon

exfat: Use a more common logging style

2020-06-09T07:48:34+00:00

Remove the direct use of KERN_ in functions by creating separate exfat_ macros. Miscellanea: o Remove several unnecessary terminating newlines in formats o Realign arguments and fit to 80 columns where appropriate Signed-off-by: Joe Perches Signed-off-by: Namjae Jeon

exfat: truncate atimes to 2s granularity

2020-04-22T11:14:06+00:00

The timestamp for access_time has double seconds granularity(There is no 10msIncrement field for access_time unlike create/modify_time). exfat's atimes are restricted to only 2s granularity so after we set an atime, round it down to the nearest 2s and set the sub-second component of the timestamp to 0. Signed-off-by: Eric Sandeen Signed-off-by: Namjae Jeon

exfat: add misc operations

2020-03-06T02:00:40+00:00

This adds the implementation of misc operations for exfat. Signed-off-by: Namjae Jeon Signed-off-by: Sungjong Seo Reviewed-by: Arnd Bergmann Reviewed-by: Pali Rohár Reviewed-by: Christoph Hellwig Signed-off-by: Al Viro