This is for adding FITRIM ioctl functionality for exFAT filesystem. For this, add generic ioctl handler and FITRIM operation. Changelog ========= v1->v2: - Change variable declaration order as reverse tree style. - Return -EOPNOTSUPP from sb_issue_discard() just as it is. - Remove cond_resched() in while loop. - Move ioctl related code into it's helper function. Hyeongseok Kim (2): exfat: add initial ioctl function exfat: add support FITRIM ioctl fs/exfat/balloc.c | 81 +++++++++++++++++++++++++++++++++++++++++++++ fs/exfat/dir.c | 5 +++ fs/exfat/exfat_fs.h | 4 +++ fs/exfat/file.c | 54 ++++++++++++++++++++++++++++++ 4 files changed, 144 insertions(+) -- 2.27.0.83.g0313f36