Commit 9b7d16e3 authored by Chandan Babu R's avatar Chandan Babu R

xfs: Introduce XFS_DIFLAG2_NREXT64 and associated helpers

This commit adds the new per-inode flag XFS_DIFLAG2_NREXT64 to indicate that
an inode supports 64-bit extent counters. This flag is also enabled by default
on newly created inodes when the corresponding filesystem has large extent
counter feature bit (i.e. XFS_FEAT_NREXT64) set.
Reviewed-by: default avatarDarrick J. Wong <djwong@kernel.org>
Reviewed-by: default avatarDave Chinner <dchinner@redhat.com>
Signed-off-by: default avatarChandan Babu R <chandan.babu@oracle.com>
parent 7c05aa9d
......@@ -991,15 +991,17 @@ static inline void xfs_dinode_put_rdev(struct xfs_dinode *dip, xfs_dev_t rdev)
#define XFS_DIFLAG2_REFLINK_BIT 1 /* file's blocks may be shared */
#define XFS_DIFLAG2_COWEXTSIZE_BIT 2 /* copy on write extent size hint */
#define XFS_DIFLAG2_BIGTIME_BIT 3 /* big timestamps */
#define XFS_DIFLAG2_NREXT64_BIT 4 /* large extent counters */
#define XFS_DIFLAG2_DAX (1 << XFS_DIFLAG2_DAX_BIT)
#define XFS_DIFLAG2_REFLINK (1 << XFS_DIFLAG2_REFLINK_BIT)
#define XFS_DIFLAG2_COWEXTSIZE (1 << XFS_DIFLAG2_COWEXTSIZE_BIT)
#define XFS_DIFLAG2_BIGTIME (1 << XFS_DIFLAG2_BIGTIME_BIT)
#define XFS_DIFLAG2_NREXT64 (1 << XFS_DIFLAG2_NREXT64_BIT)
#define XFS_DIFLAG2_ANY \
(XFS_DIFLAG2_DAX | XFS_DIFLAG2_REFLINK | XFS_DIFLAG2_COWEXTSIZE | \
XFS_DIFLAG2_BIGTIME)
XFS_DIFLAG2_BIGTIME | XFS_DIFLAG2_NREXT64)
static inline bool xfs_dinode_has_bigtime(const struct xfs_dinode *dip)
{
......@@ -1007,6 +1009,13 @@ static inline bool xfs_dinode_has_bigtime(const struct xfs_dinode *dip)
(dip->di_flags2 & cpu_to_be64(XFS_DIFLAG2_BIGTIME));
}
static inline bool xfs_dinode_has_large_extent_counts(
const struct xfs_dinode *dip)
{
return dip->di_version >= 3 &&
(dip->di_flags2 & cpu_to_be64(XFS_DIFLAG2_NREXT64));
}
/*
* Inode number format:
* low inopblog bits - offset in block
......
......@@ -2772,6 +2772,8 @@ xfs_ialloc_setup_geometry(
igeo->new_diflags2 = 0;
if (xfs_has_bigtime(mp))
igeo->new_diflags2 |= XFS_DIFLAG2_BIGTIME;
if (xfs_has_large_extent_counts(mp))
igeo->new_diflags2 |= XFS_DIFLAG2_NREXT64;
/* Compute inode btree geometry. */
igeo->agino_log = sbp->sb_inopblog + sbp->sb_agblklog;
......
......@@ -218,6 +218,11 @@ static inline bool xfs_inode_has_bigtime(struct xfs_inode *ip)
return ip->i_diflags2 & XFS_DIFLAG2_BIGTIME;
}
static inline bool xfs_inode_has_large_extent_counts(struct xfs_inode *ip)
{
return ip->i_diflags2 & XFS_DIFLAG2_NREXT64;
}
/*
* Return the buftarg used for data allocations on a given inode.
*/
......
......@@ -142,6 +142,13 @@ xfs_log_dinode_to_disk_ts(
return ts;
}
static inline bool xfs_log_dinode_has_large_extent_counts(
const struct xfs_log_dinode *ld)
{
return ld->di_version >= 3 &&
(ld->di_flags2 & XFS_DIFLAG2_NREXT64);
}
STATIC void
xfs_log_dinode_to_disk(
struct xfs_log_dinode *from,
......
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