#define XFS_SB_VERSION_SECTORBIT 0x0800
#define XFS_SB_VERSION_EXTFLGBIT 0x1000
#define XFS_SB_VERSION_DIRV2BIT 0x2000
+#define XFS_SB_VERSION_BORGBIT 0x4000 /* ASCII only case-insens. */
#define XFS_SB_VERSION_MOREBITSBIT 0x8000
#define XFS_SB_VERSION_OKSASHFBITS \
(XFS_SB_VERSION_EXTFLGBIT | \
- XFS_SB_VERSION_DIRV2BIT)
+ XFS_SB_VERSION_DIRV2BIT | \
+ XFS_SB_VERSION_BORGBIT)
#define XFS_SB_VERSION_OKREALFBITS \
(XFS_SB_VERSION_ATTRBIT | \
XFS_SB_VERSION_NLINKBIT | \
XFS_SB_VERSION_LOGV2BIT | \
XFS_SB_VERSION_SECTORBIT | \
XFS_SB_VERSION_MOREBITSBIT)
-#define XFS_SB_VERSION_OKSASHBITS \
- (XFS_SB_VERSION_NUMBITS | \
- XFS_SB_VERSION_REALFBITS | \
- XFS_SB_VERSION_OKSASHFBITS)
#define XFS_SB_VERSION_OKREALBITS \
(XFS_SB_VERSION_NUMBITS | \
XFS_SB_VERSION_OKREALFBITS | \
*/
#define XFS_SB_VERSION2_REALFBITS 0x00ffffff /* Mask: features */
#define XFS_SB_VERSION2_RESERVED1BIT 0x00000001
-#define XFS_SB_VERSION2_RESERVED2BIT 0x00000002
+#define XFS_SB_VERSION2_LAZYSBCOUNTBIT 0x00000002 /* Superblk counters */
#define XFS_SB_VERSION2_RESERVED4BIT 0x00000004
#define XFS_SB_VERSION2_ATTR2BIT 0x00000008 /* Inline attr rework */
-#define XFS_SB_VERSION2_SASHFBITS 0xff000000 /* Mask: features that
- require changing
- PROM and SASH */
+#define XFS_SB_VERSION2_PARENTBIT 0x00000010 /* parent pointers */
#define XFS_SB_VERSION2_OKREALFBITS \
- (XFS_SB_VERSION2_ATTR2BIT)
+ (XFS_SB_VERSION2_LAZYSBCOUNTBIT | \
+ XFS_SB_VERSION2_ATTR2BIT)
#define XFS_SB_VERSION2_OKSASHFBITS \
(0)
#define XFS_SB_VERSION2_OKREALBITS \
(XFS_SB_VERSION2_OKREALFBITS | \
XFS_SB_VERSION2_OKSASHFBITS )
-typedef struct xfs_sb
-{
+/*
+ * Superblock - in core version. Must match the ondisk version below.
+ * Must be padded to 64 bit alignment.
+ */
+typedef struct xfs_sb {
__uint32_t sb_magicnum; /* magic number == XFS_SB_MAGIC */
__uint32_t sb_blocksize; /* logical block size, bytes */
xfs_drfsbno_t sb_dblocks; /* number of data blocks */
__uint16_t sb_logsectsize; /* sector size for the log, bytes */
__uint32_t sb_logsunit; /* stripe unit size for the log */
__uint32_t sb_features2; /* additional feature bits */
+
+ /*
+ * bad features2 field as a result of failing to pad the sb
+ * structure to 64 bits. Some machines will be using this field
+ * for features2 bits. Easiest just to mark it bad and not use
+ * it for anything else.
+ */
+ __uint32_t sb_bad_features2;
+
+ /* must be padded to 64 bit alignment */
} xfs_sb_t;
/*
+ * Superblock - on disk version. Must match the in core version above.
+ * Must be padded to 64 bit alignment.
+ */
+typedef struct xfs_dsb {
+ __be32 sb_magicnum; /* magic number == XFS_SB_MAGIC */
+ __be32 sb_blocksize; /* logical block size, bytes */
+ __be64 sb_dblocks; /* number of data blocks */
+ __be64 sb_rblocks; /* number of realtime blocks */
+ __be64 sb_rextents; /* number of realtime extents */
+ uuid_t sb_uuid; /* file system unique id */
+ __be64 sb_logstart; /* starting block of log if internal */
+ __be64 sb_rootino; /* root inode number */
+ __be64 sb_rbmino; /* bitmap inode for realtime extents */
+ __be64 sb_rsumino; /* summary inode for rt bitmap */
+ __be32 sb_rextsize; /* realtime extent size, blocks */
+ __be32 sb_agblocks; /* size of an allocation group */
+ __be32 sb_agcount; /* number of allocation groups */
+ __be32 sb_rbmblocks; /* number of rt bitmap blocks */
+ __be32 sb_logblocks; /* number of log blocks */
+ __be16 sb_versionnum; /* header version == XFS_SB_VERSION */
+ __be16 sb_sectsize; /* volume sector size, bytes */
+ __be16 sb_inodesize; /* inode size, bytes */
+ __be16 sb_inopblock; /* inodes per block */
+ char sb_fname[12]; /* file system name */
+ __u8 sb_blocklog; /* log2 of sb_blocksize */
+ __u8 sb_sectlog; /* log2 of sb_sectsize */
+ __u8 sb_inodelog; /* log2 of sb_inodesize */
+ __u8 sb_inopblog; /* log2 of sb_inopblock */
+ __u8 sb_agblklog; /* log2 of sb_agblocks (rounded up) */
+ __u8 sb_rextslog; /* log2 of sb_rextents */
+ __u8 sb_inprogress; /* mkfs is in progress, don't mount */
+ __u8 sb_imax_pct; /* max % of fs for inode space */
+ /* statistics */
+ /*
+ * These fields must remain contiguous. If you really
+ * want to change their layout, make sure you fix the
+ * code in xfs_trans_apply_sb_deltas().
+ */
+ __be64 sb_icount; /* allocated inodes */
+ __be64 sb_ifree; /* free inodes */
+ __be64 sb_fdblocks; /* free data blocks */
+ __be64 sb_frextents; /* free realtime extents */
+ /*
+ * End contiguous fields.
+ */
+ __be64 sb_uquotino; /* user quota inode */
+ __be64 sb_gquotino; /* group quota inode */
+ __be16 sb_qflags; /* quota flags */
+ __u8 sb_flags; /* misc. flags */
+ __u8 sb_shared_vn; /* shared version number */
+ __be32 sb_inoalignmt; /* inode chunk alignment, fsblocks */
+ __be32 sb_unit; /* stripe or raid unit */
+ __be32 sb_width; /* stripe or raid width */
+ __u8 sb_dirblklog; /* log2 of dir block size (fsbs) */
+ __u8 sb_logsectlog; /* log2 of the log sector size */
+ __be16 sb_logsectsize; /* sector size for the log, bytes */
+ __be32 sb_logsunit; /* stripe unit size for the log */
+ __be32 sb_features2; /* additional feature bits */
+ /*
+ * bad features2 field as a result of failing to pad the sb
+ * structure to 64 bits. Some machines will be using this field
+ * for features2 bits. Easiest just to mark it bad and not use
+ * it for anything else.
+ */
+ __be32 sb_bad_features2;
+
+ /* must be padded to 64 bit alignment */
+} xfs_dsb_t;
+
+/*
* Sequence number values for the fields.
*/
typedef enum {
XFS_SBS_GQUOTINO, XFS_SBS_QFLAGS, XFS_SBS_FLAGS, XFS_SBS_SHARED_VN,
XFS_SBS_INOALIGNMT, XFS_SBS_UNIT, XFS_SBS_WIDTH, XFS_SBS_DIRBLKLOG,
XFS_SBS_LOGSECTLOG, XFS_SBS_LOGSECTSIZE, XFS_SBS_LOGSUNIT,
- XFS_SBS_FEATURES2,
+ XFS_SBS_FEATURES2, XFS_SBS_BAD_FEATURES2,
XFS_SBS_FIELDCOUNT
} xfs_sb_field_t;
#define XFS_SB_SHARED_VN XFS_SB_MVAL(SHARED_VN)
#define XFS_SB_UNIT XFS_SB_MVAL(UNIT)
#define XFS_SB_WIDTH XFS_SB_MVAL(WIDTH)
+#define XFS_SB_ICOUNT XFS_SB_MVAL(ICOUNT)
+#define XFS_SB_IFREE XFS_SB_MVAL(IFREE)
+#define XFS_SB_FDBLOCKS XFS_SB_MVAL(FDBLOCKS)
#define XFS_SB_FEATURES2 XFS_SB_MVAL(FEATURES2)
+#define XFS_SB_BAD_FEATURES2 XFS_SB_MVAL(BAD_FEATURES2)
#define XFS_SB_NUM_BITS ((int)XFS_SBS_FIELDCOUNT)
#define XFS_SB_ALL_BITS ((1LL << XFS_SB_NUM_BITS) - 1)
#define XFS_SB_MOD_BITS \
(XFS_SB_UUID | XFS_SB_ROOTINO | XFS_SB_RBMINO | XFS_SB_RSUMINO | \
XFS_SB_VERSIONNUM | XFS_SB_UQUOTINO | XFS_SB_GQUOTINO | \
XFS_SB_QFLAGS | XFS_SB_SHARED_VN | XFS_SB_UNIT | XFS_SB_WIDTH | \
- XFS_SB_FEATURES2)
+ XFS_SB_ICOUNT | XFS_SB_IFREE | XFS_SB_FDBLOCKS | XFS_SB_FEATURES2 | \
+ XFS_SB_BAD_FEATURES2)
/*
#define XFS_SB_VERSION_NUM(sbp) ((sbp)->sb_versionnum & XFS_SB_VERSION_NUMBITS)
-#define XFS_SB_GOOD_VERSION(sbp) xfs_sb_good_version(sbp)
-#ifdef __KERNEL__
static inline int xfs_sb_good_version(xfs_sb_t *sbp)
{
- return (((sbp->sb_versionnum >= XFS_SB_VERSION_1) && \
- (sbp->sb_versionnum <= XFS_SB_VERSION_3)) || \
- ((XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \
- !((sbp->sb_versionnum & ~XFS_SB_VERSION_OKREALBITS) || \
- ((sbp->sb_versionnum & XFS_SB_VERSION_MOREBITSBIT) && \
- (sbp->sb_features2 & ~XFS_SB_VERSION2_OKREALBITS))) && \
- (sbp->sb_shared_vn <= XFS_SB_MAX_SHARED_VN)));
-}
+ /* We always support version 1-3 */
+ if (sbp->sb_versionnum >= XFS_SB_VERSION_1 &&
+ sbp->sb_versionnum <= XFS_SB_VERSION_3)
+ return 1;
+
+ /* We support version 4 if all feature bits are supported */
+ if (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) {
+ if ((sbp->sb_versionnum & ~XFS_SB_VERSION_OKREALBITS) ||
+ ((sbp->sb_versionnum & XFS_SB_VERSION_MOREBITSBIT) &&
+ (sbp->sb_features2 & ~XFS_SB_VERSION2_OKREALBITS)))
+ return 0;
+
+#ifdef __KERNEL__
+ if (sbp->sb_shared_vn > XFS_SB_MAX_SHARED_VN)
+ return 0;
#else
-static inline int xfs_sb_good_version(xfs_sb_t *sbp)
-{
- return (((sbp->sb_versionnum >= XFS_SB_VERSION_1) && \
- (sbp->sb_versionnum <= XFS_SB_VERSION_3)) || \
- ((XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \
- !((sbp->sb_versionnum & ~XFS_SB_VERSION_OKREALBITS) || \
- ((sbp->sb_versionnum & XFS_SB_VERSION_MOREBITSBIT) && \
- (sbp->sb_features2 & ~XFS_SB_VERSION2_OKREALBITS))) && \
- (!(sbp->sb_versionnum & XFS_SB_VERSION_SHAREDBIT) || \
- (sbp->sb_shared_vn <= XFS_SB_MAX_SHARED_VN))));
+ if ((sbp->sb_versionnum & XFS_SB_VERSION_SHAREDBIT) &&
+ sbp->sb_shared_vn > XFS_SB_MAX_SHARED_VN)
+ return 0;
+#endif
+
+ return 1;
+ }
+
+ return 0;
}
-#endif /* __KERNEL__ */
-#define XFS_SB_GOOD_SASH_VERSION(sbp) \
- ((((sbp)->sb_versionnum >= XFS_SB_VERSION_1) && \
- ((sbp)->sb_versionnum <= XFS_SB_VERSION_3)) || \
- ((XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \
- !((sbp)->sb_versionnum & ~XFS_SB_VERSION_OKSASHBITS)))
+/*
+ * Detect a mismatched features2 field. Older kernels read/wrote
+ * this into the wrong slot, so to be safe we keep them in sync.
+ */
+static inline int xfs_sb_has_mismatched_features2(xfs_sb_t *sbp)
+{
+ return (sbp->sb_bad_features2 != sbp->sb_features2);
+}
-#define XFS_SB_VERSION_TONEW(v) xfs_sb_version_tonew(v)
static inline unsigned xfs_sb_version_tonew(unsigned v)
{
- return ((((v) == XFS_SB_VERSION_1) ? \
- 0 : \
- (((v) == XFS_SB_VERSION_2) ? \
- XFS_SB_VERSION_ATTRBIT : \
- (XFS_SB_VERSION_ATTRBIT | XFS_SB_VERSION_NLINKBIT))) | \
- XFS_SB_VERSION_4);
+ if (v == XFS_SB_VERSION_1)
+ return XFS_SB_VERSION_4;
+
+ if (v == XFS_SB_VERSION_2)
+ return XFS_SB_VERSION_4 | XFS_SB_VERSION_ATTRBIT;
+
+ return XFS_SB_VERSION_4 | XFS_SB_VERSION_ATTRBIT |
+ XFS_SB_VERSION_NLINKBIT;
}
-#define XFS_SB_VERSION_TOOLD(v) xfs_sb_version_toold(v)
static inline unsigned xfs_sb_version_toold(unsigned v)
{
- return (((v) & (XFS_SB_VERSION_QUOTABIT | XFS_SB_VERSION_ALIGNBIT)) ? \
- 0 : \
- (((v) & XFS_SB_VERSION_NLINKBIT) ? \
- XFS_SB_VERSION_3 : \
- (((v) & XFS_SB_VERSION_ATTRBIT) ? \
- XFS_SB_VERSION_2 : \
- XFS_SB_VERSION_1)));
+ if (v & (XFS_SB_VERSION_QUOTABIT | XFS_SB_VERSION_ALIGNBIT))
+ return 0;
+ if (v & XFS_SB_VERSION_NLINKBIT)
+ return XFS_SB_VERSION_3;
+ if (v & XFS_SB_VERSION_ATTRBIT)
+ return XFS_SB_VERSION_2;
+ return XFS_SB_VERSION_1;
}
-#define XFS_SB_VERSION_HASATTR(sbp) xfs_sb_version_hasattr(sbp)
static inline int xfs_sb_version_hasattr(xfs_sb_t *sbp)
{
- return ((sbp)->sb_versionnum == XFS_SB_VERSION_2) || \
- ((sbp)->sb_versionnum == XFS_SB_VERSION_3) || \
- ((XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \
- ((sbp)->sb_versionnum & XFS_SB_VERSION_ATTRBIT));
+ return sbp->sb_versionnum == XFS_SB_VERSION_2 ||
+ sbp->sb_versionnum == XFS_SB_VERSION_3 ||
+ (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4 &&
+ (sbp->sb_versionnum & XFS_SB_VERSION_ATTRBIT));
}
-#define XFS_SB_VERSION_ADDATTR(sbp) xfs_sb_version_addattr(sbp)
static inline void xfs_sb_version_addattr(xfs_sb_t *sbp)
{
- (sbp)->sb_versionnum = (((sbp)->sb_versionnum == XFS_SB_VERSION_1) ? \
- XFS_SB_VERSION_2 : \
- ((XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) ? \
- ((sbp)->sb_versionnum | XFS_SB_VERSION_ATTRBIT) : \
- (XFS_SB_VERSION_4 | XFS_SB_VERSION_ATTRBIT)));
+ if (sbp->sb_versionnum == XFS_SB_VERSION_1)
+ sbp->sb_versionnum = XFS_SB_VERSION_2;
+ else if (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4)
+ sbp->sb_versionnum |= XFS_SB_VERSION_ATTRBIT;
+ else
+ sbp->sb_versionnum = XFS_SB_VERSION_4 | XFS_SB_VERSION_ATTRBIT;
}
-#define XFS_SB_VERSION_HASNLINK(sbp) xfs_sb_version_hasnlink(sbp)
static inline int xfs_sb_version_hasnlink(xfs_sb_t *sbp)
{
- return ((sbp)->sb_versionnum == XFS_SB_VERSION_3) || \
- ((XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \
- ((sbp)->sb_versionnum & XFS_SB_VERSION_NLINKBIT));
+ return sbp->sb_versionnum == XFS_SB_VERSION_3 ||
+ (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4 &&
+ (sbp->sb_versionnum & XFS_SB_VERSION_NLINKBIT));
}
-#define XFS_SB_VERSION_ADDNLINK(sbp) xfs_sb_version_addnlink(sbp)
static inline void xfs_sb_version_addnlink(xfs_sb_t *sbp)
{
- (sbp)->sb_versionnum = ((sbp)->sb_versionnum <= XFS_SB_VERSION_2 ? \
- XFS_SB_VERSION_3 : \
- ((sbp)->sb_versionnum | XFS_SB_VERSION_NLINKBIT));
+ if (sbp->sb_versionnum <= XFS_SB_VERSION_2)
+ sbp->sb_versionnum = XFS_SB_VERSION_3;
+ else
+ sbp->sb_versionnum |= XFS_SB_VERSION_NLINKBIT;
}
-#define XFS_SB_VERSION_HASQUOTA(sbp) xfs_sb_version_hasquota(sbp)
static inline int xfs_sb_version_hasquota(xfs_sb_t *sbp)
{
- return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \
- ((sbp)->sb_versionnum & XFS_SB_VERSION_QUOTABIT);
+ return XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4 &&
+ (sbp->sb_versionnum & XFS_SB_VERSION_QUOTABIT);
}
-#define XFS_SB_VERSION_ADDQUOTA(sbp) xfs_sb_version_addquota(sbp)
static inline void xfs_sb_version_addquota(xfs_sb_t *sbp)
{
- (sbp)->sb_versionnum = \
- (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4 ? \
- ((sbp)->sb_versionnum | XFS_SB_VERSION_QUOTABIT) : \
- (XFS_SB_VERSION_TONEW((sbp)->sb_versionnum) | \
- XFS_SB_VERSION_QUOTABIT));
+ if (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4)
+ sbp->sb_versionnum |= XFS_SB_VERSION_QUOTABIT;
+ else
+ sbp->sb_versionnum = xfs_sb_version_tonew(sbp->sb_versionnum) |
+ XFS_SB_VERSION_QUOTABIT;
}
-#define XFS_SB_VERSION_HASALIGN(sbp) xfs_sb_version_hasalign(sbp)
static inline int xfs_sb_version_hasalign(xfs_sb_t *sbp)
{
- return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \
- ((sbp)->sb_versionnum & XFS_SB_VERSION_ALIGNBIT);
+ return XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4 &&
+ (sbp->sb_versionnum & XFS_SB_VERSION_ALIGNBIT);
}
-#define XFS_SB_VERSION_SUBALIGN(sbp) xfs_sb_version_subalign(sbp)
-static inline void xfs_sb_version_subalign(xfs_sb_t *sbp)
-{
- (sbp)->sb_versionnum = \
- XFS_SB_VERSION_TOOLD((sbp)->sb_versionnum & ~XFS_SB_VERSION_ALIGNBIT);
-}
-
-#define XFS_SB_VERSION_HASDALIGN(sbp) xfs_sb_version_hasdalign(sbp)
static inline int xfs_sb_version_hasdalign(xfs_sb_t *sbp)
{
- return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \
- ((sbp)->sb_versionnum & XFS_SB_VERSION_DALIGNBIT);
-}
-
-#define XFS_SB_VERSION_ADDDALIGN(sbp) xfs_sb_version_adddalign(sbp)
-static inline int xfs_sb_version_adddalign(xfs_sb_t *sbp)
-{
- return (sbp)->sb_versionnum = \
- ((sbp)->sb_versionnum | XFS_SB_VERSION_DALIGNBIT);
+ return XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4 &&
+ (sbp->sb_versionnum & XFS_SB_VERSION_DALIGNBIT);
}
-#define XFS_SB_VERSION_HASSHARED(sbp) xfs_sb_version_hasshared(sbp)
static inline int xfs_sb_version_hasshared(xfs_sb_t *sbp)
{
- return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \
- ((sbp)->sb_versionnum & XFS_SB_VERSION_SHAREDBIT);
+ return XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4 &&
+ (sbp->sb_versionnum & XFS_SB_VERSION_SHAREDBIT);
}
-#define XFS_SB_VERSION_ADDSHARED(sbp) xfs_sb_version_addshared(sbp)
-static inline int xfs_sb_version_addshared(xfs_sb_t *sbp)
-{
- return (sbp)->sb_versionnum = \
- ((sbp)->sb_versionnum | XFS_SB_VERSION_SHAREDBIT);
-}
-
-#define XFS_SB_VERSION_SUBSHARED(sbp) xfs_sb_version_subshared(sbp)
-static inline int xfs_sb_version_subshared(xfs_sb_t *sbp)
-{
- return (sbp)->sb_versionnum = \
- ((sbp)->sb_versionnum & ~XFS_SB_VERSION_SHAREDBIT);
-}
-
-#define XFS_SB_VERSION_HASDIRV2(sbp) xfs_sb_version_hasdirv2(sbp)
static inline int xfs_sb_version_hasdirv2(xfs_sb_t *sbp)
{
- return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \
- ((sbp)->sb_versionnum & XFS_SB_VERSION_DIRV2BIT);
+ return XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4 &&
+ (sbp->sb_versionnum & XFS_SB_VERSION_DIRV2BIT);
}
-#define XFS_SB_VERSION_HASLOGV2(sbp) xfs_sb_version_haslogv2(sbp)
static inline int xfs_sb_version_haslogv2(xfs_sb_t *sbp)
{
- return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \
- ((sbp)->sb_versionnum & XFS_SB_VERSION_LOGV2BIT);
+ return XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4 &&
+ (sbp->sb_versionnum & XFS_SB_VERSION_LOGV2BIT);
}
-#define XFS_SB_VERSION_HASEXTFLGBIT(sbp) xfs_sb_version_hasextflgbit(sbp)
static inline int xfs_sb_version_hasextflgbit(xfs_sb_t *sbp)
{
- return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \
- ((sbp)->sb_versionnum & XFS_SB_VERSION_EXTFLGBIT);
-}
-
-#define XFS_SB_VERSION_ADDEXTFLGBIT(sbp) xfs_sb_version_addextflgbit(sbp)
-static inline int xfs_sb_version_addextflgbit(xfs_sb_t *sbp)
-{
- return (sbp)->sb_versionnum = \
- ((sbp)->sb_versionnum | XFS_SB_VERSION_EXTFLGBIT);
+ return XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4 &&
+ (sbp->sb_versionnum & XFS_SB_VERSION_EXTFLGBIT);
}
-#define XFS_SB_VERSION_SUBEXTFLGBIT(sbp) xfs_sb_version_subextflgbit(sbp)
-static inline int xfs_sb_version_subextflgbit(xfs_sb_t *sbp)
+static inline int xfs_sb_version_hassector(xfs_sb_t *sbp)
{
- return (sbp)->sb_versionnum = \
- ((sbp)->sb_versionnum & ~XFS_SB_VERSION_EXTFLGBIT);
+ return XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4 &&
+ (sbp->sb_versionnum & XFS_SB_VERSION_SECTORBIT);
}
-#define XFS_SB_VERSION_HASSECTOR(sbp) xfs_sb_version_hassector(sbp)
-static inline int xfs_sb_version_hassector(xfs_sb_t *sbp)
+static inline int xfs_sb_version_hasasciici(xfs_sb_t *sbp)
{
- return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \
- ((sbp)->sb_versionnum & XFS_SB_VERSION_SECTORBIT);
+ return XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4 &&
+ (sbp->sb_versionnum & XFS_SB_VERSION_BORGBIT);
}
-#define XFS_SB_VERSION_HASMOREBITS(sbp) xfs_sb_version_hasmorebits(sbp)
static inline int xfs_sb_version_hasmorebits(xfs_sb_t *sbp)
{
- return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \
- ((sbp)->sb_versionnum & XFS_SB_VERSION_MOREBITSBIT);
+ return XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4 &&
+ (sbp->sb_versionnum & XFS_SB_VERSION_MOREBITSBIT);
}
/*
* For example, for a bit defined as XFS_SB_VERSION2_FUNBIT, has a macro:
*
* SB_VERSION_HASFUNBIT(xfs_sb_t *sbp)
- * ((XFS_SB_VERSION_HASMOREBITS(sbp) &&
+ * ((xfs_sb_version_hasmorebits(sbp) &&
* ((sbp)->sb_features2 & XFS_SB_VERSION2_FUNBIT)
*/
-#define XFS_SB_VERSION_HASATTR2(sbp) xfs_sb_version_hasattr2(sbp)
+static inline int xfs_sb_version_haslazysbcount(xfs_sb_t *sbp)
+{
+ return xfs_sb_version_hasmorebits(sbp) &&
+ (sbp->sb_features2 & XFS_SB_VERSION2_LAZYSBCOUNTBIT);
+}
+
static inline int xfs_sb_version_hasattr2(xfs_sb_t *sbp)
{
- return (XFS_SB_VERSION_HASMOREBITS(sbp)) && \
- ((sbp)->sb_features2 & XFS_SB_VERSION2_ATTR2BIT);
+ return xfs_sb_version_hasmorebits(sbp) &&
+ (sbp->sb_features2 & XFS_SB_VERSION2_ATTR2BIT);
}
-#define XFS_SB_VERSION_ADDATTR2(sbp) xfs_sb_version_addattr2(sbp)
static inline void xfs_sb_version_addattr2(xfs_sb_t *sbp)
{
- ((sbp)->sb_versionnum = \
- ((sbp)->sb_versionnum | XFS_SB_VERSION_MOREBITSBIT), \
- ((sbp)->sb_features2 = \
- ((sbp)->sb_features2 | XFS_SB_VERSION2_ATTR2BIT)));
+ sbp->sb_versionnum |= XFS_SB_VERSION_MOREBITSBIT;
+ sbp->sb_features2 |= XFS_SB_VERSION2_ATTR2BIT;
+}
+
+static inline void xfs_sb_version_removeattr2(xfs_sb_t *sbp)
+{
+ sbp->sb_features2 &= ~XFS_SB_VERSION2_ATTR2BIT;
+ if (!sbp->sb_features2)
+ sbp->sb_versionnum &= ~XFS_SB_VERSION_MOREBITSBIT;
}
/*
#define XFS_SB_DADDR ((xfs_daddr_t)0) /* daddr in filesystem/ag */
#define XFS_SB_BLOCK(mp) XFS_HDR_BLOCK(mp, XFS_SB_DADDR)
-#define XFS_BUF_TO_SBP(bp) ((xfs_sb_t *)XFS_BUF_PTR(bp))
+#define XFS_BUF_TO_SBP(bp) ((xfs_dsb_t *)XFS_BUF_PTR(bp))
#define XFS_HDR_BLOCK(mp,d) ((xfs_agblock_t)XFS_BB_TO_FSBT(mp,d))
#define XFS_DADDR_TO_FSB(mp,d) XFS_AGB_TO_FSB(mp, \
- XFS_DADDR_TO_AGNO(mp,d), XFS_DADDR_TO_AGBNO(mp,d))
+ xfs_daddr_to_agno(mp,d), xfs_daddr_to_agbno(mp,d))
#define XFS_FSB_TO_DADDR(mp,fsbno) XFS_AGB_TO_DADDR(mp, \
XFS_FSB_TO_AGNO(mp,fsbno), XFS_FSB_TO_AGBNO(mp,fsbno))
* File system sector to basic block conversions.
*/
#define XFS_FSS_TO_BB(mp,sec) ((sec) << (mp)->m_sectbb_log)
-#define XFS_BB_TO_FSS(mp,bb) \
- (((bb) + (XFS_FSS_TO_BB(mp,1) - 1)) >> (mp)->m_sectbb_log)
-#define XFS_BB_TO_FSST(mp,bb) ((bb) >> (mp)->m_sectbb_log)
-
-/*
- * File system sector to byte conversions.
- */
-#define XFS_FSS_TO_B(mp,sectno) ((xfs_fsize_t)(sectno) << (mp)->m_sb.sb_sectlog)
-#define XFS_B_TO_FSST(mp,b) (((__uint64_t)(b)) >> (mp)->m_sb.sb_sectlog)
/*
* File system block to basic block conversions.
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff