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25/02/2024 14:20, Ritesh Harjani (IBM) wrote: > John Garry writes: > >> From: Prasad Singamsetty >> >> Extend statx system call to return additional info for atomic write support >> support if the specified file is a block device. >> >> Signed-off-by: Prasad Singamsetty >> Signed-off-by: John Garry >> --- >> block/bdev.c | 37 +++++++++++++++++++++++++++---------- >> fs/stat.c | 13 ++++++------- >> include/linux/blkdev.h | 5 +++-- >> 3 files changed, 36 insertions(+), 19 deletions(-) >> >> diff --git a/block/bdev.c b/block/bdev.c >> index e9f1b12bd75c..0dada9902bd4 100644 >> --- a/block/bdev.c >> +++ b/block/bdev.c >> @@ -1116,24 +1116,41 @@ void sync_bdevs(bool wait) >> iput(old_inode); >> } >> >> +#define BDEV_STATX_SUPPORTED_MASK (STATX_DIOALIGN | STATX_WRITE_ATOMIC) >> + >> /* >> - * Handle STATX_DIOALIGN for block devices. >> - * >> - * Note that the inode passed to this is the inode of a block device node file, >> - * not the block device's internal inode. Therefore it is *not* valid to use >> - * I_BDEV() here; the block device has to be looked up by i_rdev instead. >> + * Handle STATX_{DIOALIGN, WRITE_ATOMIC} for block devices. >> */ >> -void bdev_statx_dioalign(struct inode *inode, struct kstat *stat) >> +void bdev_statx(struct dentry *dentry, struct kstat *stat, u32 request_mask) > > why change this to dentry? Why not keep it as inode itself? I suppose that I could do that. Thanks, John