Re: [PATCH v4 06/11] block: Add atomic write support for statx

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On 25/02/2024 14:20, Ritesh Harjani (IBM) wrote:
John Garry <john.g.garry@xxxxxxxxxx> writes:

From: Prasad Singamsetty <prasad.singamsetty@xxxxxxxxxx>

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 <prasad.singamsetty@xxxxxxxxxx>
Signed-off-by: John Garry <john.g.garry@xxxxxxxxxx>
  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)
- * 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.


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