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authorKent Overstreet <kent.overstreet@linux.dev>2024-03-08 05:29:12 +0300
committerChristian Brauner <brauner@kernel.org>2024-03-26 11:01:18 +0300
commit2a82bb02941fb53d1f8df2a360e7798ae3d9d962 (patch)
treebbc159905c9a051e549d225ecfff31c9b7fe6ec7 /fs/stat.c
parent4cece764965020c22cff7665b18a012006359095 (diff)
downloadlinux-2a82bb02941fb53d1f8df2a360e7798ae3d9d962.tar.xz
statx: stx_subvol
Add a new statx field for (sub)volume identifiers, as implemented by btrfs and bcachefs. This includes bcachefs support; we'll definitely want btrfs support as well. Link: https://lore.kernel.org/linux-fsdevel/2uvhm6gweyl7iyyp2xpfryvcu2g3padagaeqcbiavjyiis6prl@yjm725bizncq/ Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev> Cc: Josef Bacik <josef@toxicpanda.com> Cc: Miklos Szeredi <mszeredi@redhat.com> Cc: Christian Brauner <brauner@kernel.org> Cc: David Howells <dhowells@redhat.com> Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev> Link: https://lore.kernel.org/r/20240308022914.196982-1-kent.overstreet@linux.dev Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
Diffstat (limited to 'fs/stat.c')
-rw-r--r--fs/stat.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/stat.c b/fs/stat.c
index 77cdc69eb422..70bd3e888cfa 100644
--- a/fs/stat.c
+++ b/fs/stat.c
@@ -658,6 +658,7 @@ cp_statx(const struct kstat *stat, struct statx __user *buffer)
tmp.stx_mnt_id = stat->mnt_id;
tmp.stx_dio_mem_align = stat->dio_mem_align;
tmp.stx_dio_offset_align = stat->dio_offset_align;
+ tmp.stx_subvol = stat->subvol;
return copy_to_user(buffer, &tmp, sizeof(tmp)) ? -EFAULT : 0;
}