xiaomi-sm8450/android_kernel_xiaomi_sm8450
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Kods Problēmas Izmaiņu pieprasījumi Darbības Pakotnes Projekti Laidieni Vikivietne Aktivitāte

Merge branch 'xfs-feature-bit-cleanup' into for-next

Pārlūkot izejas kodu 
Conflicts:
	fs/xfs/xfs_inode.c
Šī revīzija ir iekļauta:
Dave Chinner
2014-05-20 08:57:02 +10:00
vecāks 0d907a3bb4 ab3e57b53f
revīzija b70f14e1ff
11 mainīti faili ar 101 papildinājumiem un 327 dzēšanām
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225
fs/xfs/xfs_sb.h
Parādīt failu

@@ -36,8 +36,6 @@ struct xfs_trans;
#define XFS_SB_VERSION_5 5 /* CRC enabled filesystem */
#define XFS_SB_VERSION_NUMBITS 0x000f
#define XFS_SB_VERSION_ALLFBITS 0xfff0
#define XFS_SB_VERSION_SASHFBITS 0xf000
#define XFS_SB_VERSION_REALFBITS 0x0ff0
#define XFS_SB_VERSION_ATTRBIT 0x0010
#define XFS_SB_VERSION_NLINKBIT 0x0020
#define XFS_SB_VERSION_QUOTABIT 0x0040
@@ -50,24 +48,15 @@ struct xfs_trans;
#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_BORGBIT)
#define XFS_SB_VERSION_OKREALFBITS \
(XFS_SB_VERSION_ATTRBIT | \
XFS_SB_VERSION_NLINKBIT | \
XFS_SB_VERSION_QUOTABIT | \
XFS_SB_VERSION_ALIGNBIT | \
XFS_SB_VERSION_DALIGNBIT | \
XFS_SB_VERSION_SHAREDBIT | \
XFS_SB_VERSION_LOGV2BIT | \
XFS_SB_VERSION_SECTORBIT | \
XFS_SB_VERSION_MOREBITSBIT)
#define XFS_SB_VERSION_OKREALBITS \
(XFS_SB_VERSION_NUMBITS | \
XFS_SB_VERSION_OKREALFBITS | \
XFS_SB_VERSION_OKSASHFBITS)
/*
* Supported feature bit list is just all bits in the versionnum field because
* we've used them all up and understand them all. Except, of course, for the
* shared superblock bit, which nobody knows what it does and so is unsupported.
*/
#define XFS_SB_VERSION_OKBITS \
((XFS_SB_VERSION_NUMBITS | XFS_SB_VERSION_ALLFBITS) & \
~XFS_SB_VERSION_SHAREDBIT)
/*
* There are two words to hold XFS "feature" bits: the original
@@ -76,7 +65,6 @@ struct xfs_trans;
*
* These defines represent bits in sb_features2.
*/
#define XFS_SB_VERSION2_REALFBITS 0x00ffffff /* Mask: features */
#define XFS_SB_VERSION2_RESERVED1BIT 0x00000001
#define XFS_SB_VERSION2_LAZYSBCOUNTBIT 0x00000002 /* Superblk counters */
#define XFS_SB_VERSION2_RESERVED4BIT 0x00000004
@@ -86,16 +74,11 @@ struct xfs_trans;
#define XFS_SB_VERSION2_CRCBIT 0x00000100 /* metadata CRCs */
#define XFS_SB_VERSION2_FTYPE 0x00000200 /* inode type in dir */
#define XFS_SB_VERSION2_OKREALFBITS \
#define XFS_SB_VERSION2_OKBITS \
(XFS_SB_VERSION2_LAZYSBCOUNTBIT | \
XFS_SB_VERSION2_ATTR2BIT | \
XFS_SB_VERSION2_PROJID32BIT | \
XFS_SB_VERSION2_FTYPE)
#define XFS_SB_VERSION2_OKSASHFBITS \
(0)
#define XFS_SB_VERSION2_OKREALBITS \
(XFS_SB_VERSION2_OKREALFBITS | \
XFS_SB_VERSION2_OKSASHFBITS )
/*
* Superblock - in core version. Must match the ondisk version below.
@@ -345,214 +328,140 @@ typedef enum {
#define XFS_SB_VERSION_NUM(sbp) ((sbp)->sb_versionnum & XFS_SB_VERSION_NUMBITS)
static inline int xfs_sb_good_version(xfs_sb_t *sbp)
/*
* The first XFS version we support is a v4 superblock with V2 directories.
*/
static inline bool xfs_sb_good_v4_features(struct xfs_sb *sbp)
{
/* We always support version 1-3 */
if (sbp->sb_versionnum >= XFS_SB_VERSION_1 &&
sbp->sb_versionnum <= XFS_SB_VERSION_3)
return 1;
if (!(sbp->sb_versionnum & XFS_SB_VERSION_DIRV2BIT))
return false;
/* 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;
/* check for unknown features in the fs */
if ((sbp->sb_versionnum & ~XFS_SB_VERSION_OKBITS) ||
((sbp->sb_versionnum & XFS_SB_VERSION_MOREBITSBIT) &&
(sbp->sb_features2 & ~XFS_SB_VERSION2_OKBITS)))
return false;
if (sbp->sb_shared_vn > XFS_SB_MAX_SHARED_VN)
return 0;
return 1;
}
return true;
}
static inline bool xfs_sb_good_version(struct xfs_sb *sbp)
{
if (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5)
return 1;
return 0;
return true;
if (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4)
return xfs_sb_good_v4_features(sbp);
return false;
}
/*
* 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)
static inline bool xfs_sb_has_mismatched_features2(struct xfs_sb *sbp)
{
return (sbp->sb_bad_features2 != sbp->sb_features2);
return sbp->sb_bad_features2 != sbp->sb_features2;
}
static inline unsigned xfs_sb_version_tonew(unsigned v)
static inline bool xfs_sb_version_hasattr(struct xfs_sb *sbp)
{
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;
return (sbp->sb_versionnum & XFS_SB_VERSION_ATTRBIT);
}
static inline unsigned xfs_sb_version_toold(unsigned v)
static inline void xfs_sb_version_addattr(struct xfs_sb *sbp)
{
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;
sbp->sb_versionnum |= XFS_SB_VERSION_ATTRBIT;
}
static inline int xfs_sb_version_hasattr(xfs_sb_t *sbp)
static inline bool xfs_sb_version_hasquota(struct xfs_sb *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_QUOTABIT);
}
static inline void xfs_sb_version_addattr(xfs_sb_t *sbp)
static inline void xfs_sb_version_addquota(struct xfs_sb *sbp)
{
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;
sbp->sb_versionnum |= XFS_SB_VERSION_QUOTABIT;
}
static inline int xfs_sb_version_hasnlink(xfs_sb_t *sbp)
static inline bool xfs_sb_version_hasalign(struct xfs_sb *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));
}
static inline void xfs_sb_version_addnlink(xfs_sb_t *sbp)
{
if (sbp->sb_versionnum <= XFS_SB_VERSION_2)
sbp->sb_versionnum = XFS_SB_VERSION_3;
else
sbp->sb_versionnum |= XFS_SB_VERSION_NLINKBIT;
}
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);
}
static inline void xfs_sb_version_addquota(xfs_sb_t *sbp)
{
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;
}
static inline int xfs_sb_version_hasalign(xfs_sb_t *sbp)
{
return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5) ||
(XFS_SB_VERSION_NUM(sbp) >= XFS_SB_VERSION_4 &&
return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5 ||
(sbp->sb_versionnum & XFS_SB_VERSION_ALIGNBIT));
}
static inline int xfs_sb_version_hasdalign(xfs_sb_t *sbp)
static inline bool xfs_sb_version_hasdalign(struct xfs_sb *sbp)
{
return XFS_SB_VERSION_NUM(sbp) >= XFS_SB_VERSION_4 &&
(sbp->sb_versionnum & XFS_SB_VERSION_DALIGNBIT);
return (sbp->sb_versionnum & XFS_SB_VERSION_DALIGNBIT);
}
static inline int xfs_sb_version_hasshared(xfs_sb_t *sbp)
static inline bool xfs_sb_version_haslogv2(struct xfs_sb *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_5 ||
(sbp->sb_versionnum & XFS_SB_VERSION_LOGV2BIT);
}
static inline int xfs_sb_version_hasdirv2(xfs_sb_t *sbp)
static inline bool xfs_sb_version_hasextflgbit(struct xfs_sb *sbp)
{
return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5) ||
(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_5 ||
(sbp->sb_versionnum & XFS_SB_VERSION_EXTFLGBIT);
}
static inline int xfs_sb_version_haslogv2(xfs_sb_t *sbp)
static inline bool xfs_sb_version_hassector(struct xfs_sb *sbp)
{
return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5) ||
(XFS_SB_VERSION_NUM(sbp) >= XFS_SB_VERSION_4 &&
(sbp->sb_versionnum & XFS_SB_VERSION_LOGV2BIT));
return (sbp->sb_versionnum & XFS_SB_VERSION_SECTORBIT);
}
static inline int xfs_sb_version_hasextflgbit(xfs_sb_t *sbp)
static inline bool xfs_sb_version_hasasciici(struct xfs_sb *sbp)
{
return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5) ||
(XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4 &&
(sbp->sb_versionnum & XFS_SB_VERSION_EXTFLGBIT));
return (sbp->sb_versionnum & XFS_SB_VERSION_BORGBIT);
}
static inline int xfs_sb_version_hassector(xfs_sb_t *sbp)
static inline bool xfs_sb_version_hasmorebits(struct xfs_sb *sbp)
{
return XFS_SB_VERSION_NUM(sbp) >= XFS_SB_VERSION_4 &&
(sbp->sb_versionnum & XFS_SB_VERSION_SECTORBIT);
}
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_BORGBIT);
}
static inline int xfs_sb_version_hasmorebits(xfs_sb_t *sbp)
{
return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5) ||
(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_5 ||
(sbp->sb_versionnum & XFS_SB_VERSION_MOREBITSBIT);
}
/*
* sb_features2 bit version macros.
*
* 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) &&
* ((sbp)->sb_features2 & XFS_SB_VERSION2_FUNBIT)
*/
static inline int xfs_sb_version_haslazysbcount(xfs_sb_t *sbp)
static inline bool xfs_sb_version_haslazysbcount(struct xfs_sb *sbp)
{
return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5) ||
(xfs_sb_version_hasmorebits(sbp) &&
(sbp->sb_features2 & XFS_SB_VERSION2_LAZYSBCOUNTBIT));
}
static inline int xfs_sb_version_hasattr2(xfs_sb_t *sbp)
static inline bool xfs_sb_version_hasattr2(struct xfs_sb *sbp)
{
return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5) ||
(xfs_sb_version_hasmorebits(sbp) &&
(sbp->sb_features2 & XFS_SB_VERSION2_ATTR2BIT));
}
static inline void xfs_sb_version_addattr2(xfs_sb_t *sbp)
static inline void xfs_sb_version_addattr2(struct xfs_sb *sbp)
{
sbp->sb_versionnum |= XFS_SB_VERSION_MOREBITSBIT;
sbp->sb_features2 |= XFS_SB_VERSION2_ATTR2BIT;
sbp->sb_bad_features2 |= XFS_SB_VERSION2_ATTR2BIT;
}
static inline void xfs_sb_version_removeattr2(xfs_sb_t *sbp)
static inline void xfs_sb_version_removeattr2(struct xfs_sb *sbp)
{
sbp->sb_features2 &= ~XFS_SB_VERSION2_ATTR2BIT;
sbp->sb_bad_features2 &= ~XFS_SB_VERSION2_ATTR2BIT;
if (!sbp->sb_features2)
sbp->sb_versionnum &= ~XFS_SB_VERSION_MOREBITSBIT;
}
static inline int xfs_sb_version_hasprojid32bit(xfs_sb_t *sbp)
static inline bool xfs_sb_version_hasprojid32bit(struct xfs_sb *sbp)
{
return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5) ||
(xfs_sb_version_hasmorebits(sbp) &&
(sbp->sb_features2 & XFS_SB_VERSION2_PROJID32BIT));
}
static inline void xfs_sb_version_addprojid32bit(xfs_sb_t *sbp)
static inline void xfs_sb_version_addprojid32bit(struct xfs_sb *sbp)
{
sbp->sb_versionnum |= XFS_SB_VERSION_MOREBITSBIT;
sbp->sb_features2 |= XFS_SB_VERSION2_PROJID32BIT;
@@ -625,12 +534,12 @@ xfs_sb_has_incompat_log_feature(
/*
* V5 superblock specific feature checks
*/
static inline int xfs_sb_version_hascrc(xfs_sb_t *sbp)
static inline int xfs_sb_version_hascrc(struct xfs_sb *sbp)
{
return XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5;
}
static inline int xfs_sb_version_has_pquotino(xfs_sb_t *sbp)
static inline int xfs_sb_version_has_pquotino(struct xfs_sb *sbp)
{
return XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5;
}