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path: root/fs/exfat/namei.c
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2020-06-29exfat: move setting VOL_DIRTY over exfat_remove_entries()Namjae Jeon1-1/+1
Move setting VOL_DIRTY over exfat_remove_entries() to avoid unneeded leaving VOL_DIRTY on -ENOTEMPTY. Fixes: 5f2aa075070c ("exfat: add inode operations") Cc: stable@vger.kernel.org # v5.7 Reported-by: Tetsuhiro Kohada <kohada.t2@gmail.com> Reviewed-by: Sungjong Seo <sj1557.seo@samsung.com> Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
2020-06-29exfat: add missing brelse() calls on error pathsDan Carpenter1-2/+10
If the second exfat_get_dentry() call fails then we need to release "old_bh" before returning. There is a similar bug in exfat_move_file(). Fixes: 5f2aa075070c ("exfat: add inode operations") Reported-by: Markus Elfring <Markus.Elfring@web.de> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
2020-06-09exfat: optimize dir-cacheTetsuhiro Kohada1-6/+8
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> Reviewed-by: Sungjong Seo <sj1557.seo@samsung.com> Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
2020-06-09exfat: replace 'time_ms' with 'time_cs'Tetsuhiro Kohada1-2/+2
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 <namjae.jeon@samsung.com>
2020-06-09exfat: Simplify exfat_utf8_d_hash() for code points above U+FFFFPali Rohár1-8/+2
Function partial_name_hash() takes long type value into which can be stored one Unicode code point. Therefore conversion from UTF-32 to UTF-16 is not needed. Signed-off-by: Pali Rohár <pali@kernel.org> Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
2020-06-09exfat: Use a more common logging styleJoe Perches1-16/+10
Remove the direct use of KERN_<LEVEL> in functions by creating separate exfat_<level> 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 <joe@perches.com> Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
2020-06-09exfat: Simplify exfat_utf8_d_cmp() for code points above U+FFFFPali Rohár1-7/+2
If two Unicode code points represented in UTF-16 are different then also their UTF-32 representation must be different. Therefore conversion from UTF-32 to UTF-16 is not needed. Signed-off-by: Pali Rohár <pali@kernel.org> Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
2020-05-18exfat: fix possible memory leak in exfat_find()Wei Yongjun1-0/+1
'es' is malloced from exfat_get_dentry_set() in exfat_find() and should be freed before leaving from the error handling cases, otherwise it will cause memory leak. Fixes: 5f2aa075070c ("exfat: add inode operations") Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
2020-04-22exfat: truncate atimes to 2s granularityEric Sandeen1-0/+7
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 <sandeen@sandeen.net> Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
2020-03-06exfat: add inode operationsNamjae Jeon1-0/+1448
This adds the implementation of inode operations for exfat. Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com> Signed-off-by: Sungjong Seo <sj1557.seo@samsung.com> Reviewed-by: Pali Rohár <pali.rohar@gmail.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>