X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=fs%2Fxfs%2Flinux-2.6%2Fxfs_linux.h;h=4edc46915b575a7eb1261f2bda587cfbccfe0462;hb=b41759cf11c84ad0d569c0ef200c449ad2cc24e3;hp=d8e21ba0cccc4df561857cf82bb1d2c0c48c27c2;hpb=733482e445ca4450cf41381b1c95e2b8c7145114;p=safe%2Fjmp%2Flinux-2.6 diff --git a/fs/xfs/linux-2.6/xfs_linux.h b/fs/xfs/linux-2.6/xfs_linux.h index d8e21ba..4edc469 100644 --- a/fs/xfs/linux-2.6/xfs_linux.h +++ b/fs/xfs/linux-2.6/xfs_linux.h @@ -19,7 +19,6 @@ #define __XFS_LINUX__ #include -#include /* * Some types are conditional depending on the target system. @@ -44,7 +43,6 @@ #include #include -#include #include #include #include @@ -52,7 +50,6 @@ #include #include -#include #include #include @@ -73,6 +70,12 @@ #include #include #include +#include +#include +#include +#include +#include +#include #include #include @@ -81,7 +84,6 @@ #include #include -#include #include #include #include @@ -98,22 +100,11 @@ /* * Feature macros (disable/enable) */ -#undef HAVE_REFCACHE /* reference cache not needed for NFS in 2.6 */ -#define HAVE_SENDFILE /* sendfile(2) exists in 2.6, but not in 2.4 */ - -/* - * State flag for unwritten extent buffers. - * - * We need to be able to distinguish between these and delayed - * allocate buffers within XFS. The generic IO path code does - * not need to distinguish - we use the BH_Delay flag for both - * delalloc and these ondisk-uninitialised buffers. - */ -BUFFER_FNS(PrivateStart, unwritten); -static inline void set_buffer_unwritten_io(struct buffer_head *bh) -{ - bh->b_end_io = linvfs_unwritten_done; -} +#ifdef CONFIG_SMP +#define HAVE_PERCPU_SB /* per cpu superblock counters are a 2.6 feature */ +#else +#undef HAVE_PERCPU_SB /* per cpu superblock counters are a 2.6 feature */ +#endif #define restricted_chown xfs_params.restrict_chown.val #define irix_sgid_inherit xfs_params.sgid_inherit.val @@ -129,78 +120,37 @@ static inline void set_buffer_unwritten_io(struct buffer_head *bh) #define xfs_buf_age_centisecs xfs_params.xfs_buf_age.val #define xfs_inherit_nosymlinks xfs_params.inherit_nosym.val #define xfs_rotorstep xfs_params.rotorstep.val +#define xfs_inherit_nodefrag xfs_params.inherit_nodfrg.val +#define xfs_fstrm_centisecs xfs_params.fstrm_timer.val -#ifndef raw_smp_processor_id -#define raw_smp_processor_id() smp_processor_id() -#endif -#define current_cpu() raw_smp_processor_id() +#define current_cpu() (raw_smp_processor_id()) #define current_pid() (current->pid) #define current_fsuid(cred) (current->fsuid) #define current_fsgid(cred) (current->fsgid) +#define current_test_flags(f) (current->flags & (f)) +#define current_set_flags_nested(sp, f) \ + (*(sp) = current->flags, current->flags |= (f)) +#define current_clear_flags_nested(sp, f) \ + (*(sp) = current->flags, current->flags &= ~(f)) +#define current_restore_flags_nested(sp, f) \ + (current->flags = ((current->flags & ~(f)) | (*(sp) & (f)))) -#define NBPP PAGE_SIZE -#define DPPSHFT (PAGE_SHIFT - 9) -#define NDPP (1 << (PAGE_SHIFT - 9)) -#define dtop(DD) (((DD) + NDPP - 1) >> DPPSHFT) -#define dtopt(DD) ((DD) >> DPPSHFT) -#define dpoff(DD) ((DD) & (NDPP-1)) +#define spinlock_destroy(lock) #define NBBY 8 /* number of bits per byte */ -#define NBPC PAGE_SIZE /* Number of bytes per click */ -#define BPCSHIFT PAGE_SHIFT /* LOG2(NBPC) if exact */ /* * Size of block device i/o is parameterized here. * Currently the system supports page-sized i/o. */ -#define BLKDEV_IOSHIFT BPCSHIFT +#define BLKDEV_IOSHIFT PAGE_CACHE_SHIFT #define BLKDEV_IOSIZE (1<>BPCSHIFT) -#define btoct(x) ((__psunsigned_t)(x)>>BPCSHIFT) -#define btoc64(x) (((__uint64_t)(x)+(NBPC-1))>>BPCSHIFT) -#define btoct64(x) ((__uint64_t)(x)>>BPCSHIFT) -#define io_btoc(x) (((__psunsigned_t)(x)+(IO_NBPC-1))>>IO_BPCSHIFT) -#define io_btoct(x) ((__psunsigned_t)(x)>>IO_BPCSHIFT) - -/* off_t bytes to clicks */ -#define offtoc(x) (((__uint64_t)(x)+(NBPC-1))>>BPCSHIFT) -#define offtoct(x) ((xfs_off_t)(x)>>BPCSHIFT) - -/* clicks to off_t bytes */ -#define ctooff(x) ((xfs_off_t)(x)<>BPCSHIFT) -#define ctob64(x) ((__uint64_t)(x)<>BPCSHIFT) - -#ifndef ENOATTR #define ENOATTR ENODATA /* Attribute not found */ -#endif - -/* Note: EWRONGFS never visible outside the kernel */ -#define EWRONGFS EINVAL /* Mount with wrong filesystem type */ - -/* - * XXX EFSCORRUPTED needs a real value in errno.h. asm-i386/errno.h won't - * return codes out of its known range in errno. - * XXX Also note: needs to be < 1000 and fairly unique on Linux (mustn't - * conflict with any code we use already or any code a driver may use) - * XXX Some options (currently we do #2): - * 1/ New error code ["Filesystem is corrupted", _after_ glibc updated] - * 2/ 990 ["Unknown error 990"] - * 3/ EUCLEAN ["Structure needs cleaning"] - * 4/ Convert EFSCORRUPTED to EIO [just prior to return into userspace] - */ -#define EFSCORRUPTED 990 /* Filesystem is corrupted */ +#define EWRONGFS EINVAL /* Mount with wrong filesystem type */ +#define EFSCORRUPTED EUCLEAN /* Filesystem is corrupted */ #define SYNCHRONIZE() barrier() #define __return_address __builtin_return_address(0) @@ -222,7 +172,6 @@ static inline void set_buffer_unwritten_io(struct buffer_head *bh) #define MIN(a,b) (min(a,b)) #define MAX(a,b) (max(a,b)) #define howmany(x, y) (((x)+((y)-1))/(y)) -#define roundup(x, y) ((((x)+((y)-1))/(y))*(y)) /* * Various platform dependent calls that don't fit anywhere else @@ -230,11 +179,7 @@ static inline void set_buffer_unwritten_io(struct buffer_head *bh) #define xfs_sort(a,n,s,fn) sort(a,n,s,fn,NULL) #define xfs_stack_trace() dump_stack() #define xfs_itruncate_data(ip, off) \ - (-vmtruncate(LINVFS_GET_IP(XFS_ITOV(ip)), (off))) -#define xfs_statvfs_fsid(statp, mp) \ - ({ u64 id = huge_encode_dev((mp)->m_dev); \ - __kernel_fsid_t *fsid = &(statp)->f_fsid; \ - (fsid->val[0] = (u32)id, fsid->val[1] = (u32)(id >> 32)); }) + (-vmtruncate(vn_to_inode(XFS_ITOV(ip)), (off))) /* Move the kernel do_div definition off to one side */ @@ -347,4 +292,11 @@ static inline __uint64_t roundup_64(__uint64_t x, __uint32_t y) return(x * y); } +static inline __uint64_t howmany_64(__uint64_t x, __uint32_t y) +{ + x += y - 1; + do_div(x, y); + return x; +} + #endif /* __XFS_LINUX__ */