From: Xiubo Li <xiubli@xxxxxxxxxx> Inode number 0x4 is reserved for the lost+found dir, and the app or test app need to access it. URL: https://tracker.ceph.com/issues/50216 Signed-off-by: Xiubo Li <xiubli@xxxxxxxxxx> --- fs/ceph/super.h | 3 ++- include/linux/ceph/ceph_fs.h | 7 ++++--- 2 files changed, 6 insertions(+), 4 deletions(-) diff --git a/fs/ceph/super.h b/fs/ceph/super.h index 4808a1458c9b..0f38e6183ff0 100644 --- a/fs/ceph/super.h +++ b/fs/ceph/super.h @@ -542,7 +542,8 @@ static inline int ceph_ino_compare(struct inode *inode, void *data) static inline bool ceph_vino_is_reserved(const struct ceph_vino vino) { - if (vino.ino < CEPH_INO_SYSTEM_BASE && vino.ino != CEPH_INO_ROOT) { + if (vino.ino < CEPH_INO_SYSTEM_BASE && vino.ino != CEPH_INO_ROOT && + vino.ino != CEPH_INO_LOST_AND_FOUND ) { WARN_RATELIMIT(1, "Attempt to access reserved inode number 0x%llx", vino.ino); return true; } diff --git a/include/linux/ceph/ceph_fs.h b/include/linux/ceph/ceph_fs.h index e41a811026f6..57e5bd63fb7a 100644 --- a/include/linux/ceph/ceph_fs.h +++ b/include/linux/ceph/ceph_fs.h @@ -27,9 +27,10 @@ #define CEPH_MONC_PROTOCOL 15 /* server/client */ -#define CEPH_INO_ROOT 1 -#define CEPH_INO_CEPH 2 /* hidden .ceph dir */ -#define CEPH_INO_DOTDOT 3 /* used by ceph fuse for parent (..) */ +#define CEPH_INO_ROOT 1 +#define CEPH_INO_CEPH 2 /* hidden .ceph dir */ +#define CEPH_INO_DOTDOT 3 /* used by ceph fuse for parent (..) */ +#define CEPH_INO_LOST_AND_FOUND 4 /* lost+found dir */ /* arbitrary limit on max # of monitors (cluster of 3 is typical) */ #define CEPH_MAX_MON 31 -- 2.27.0
