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Diffstat (limited to 'fs/ufs/util.h')
-rw-r--r--fs/ufs/util.h115
1 files changed, 44 insertions, 71 deletions
diff --git a/fs/ufs/util.h b/fs/ufs/util.h
index 48d6d9bcc15..28fce6c239b 100644
--- a/fs/ufs/util.h
+++ b/fs/ufs/util.h
@@ -17,10 +17,16 @@
#define in_range(b,first,len) ((b)>=(first)&&(b)<(first)+(len))
/*
- * macros used for retyping
+ * functions used for retyping
*/
-#define UCPI_UBH ((struct ufs_buffer_head *)ucpi)
-#define USPI_UBH ((struct ufs_buffer_head *)uspi)
+static inline struct ufs_buffer_head *UCPI_UBH(struct ufs_cg_private_info *cpi)
+{
+ return &cpi->c_ubh;
+}
+static inline struct ufs_buffer_head *USPI_UBH(struct ufs_sb_private_info *spi)
+{
+ return &spi->s_ubh;
+}
@@ -33,12 +39,12 @@ ufs_get_fs_state(struct super_block *sb, struct ufs_super_block_first *usb1,
{
switch (UFS_SB(sb)->s_flags & UFS_ST_MASK) {
case UFS_ST_SUN:
- return fs32_to_cpu(sb, usb3->fs_u2.fs_sun.fs_state);
+ return fs32_to_cpu(sb, usb3->fs_un2.fs_sun.fs_state);
case UFS_ST_SUNx86:
return fs32_to_cpu(sb, usb1->fs_u1.fs_sunx86.fs_state);
case UFS_ST_44BSD:
default:
- return fs32_to_cpu(sb, usb3->fs_u2.fs_44.fs_state);
+ return fs32_to_cpu(sb, usb3->fs_un2.fs_44.fs_state);
}
}
@@ -48,13 +54,13 @@ ufs_set_fs_state(struct super_block *sb, struct ufs_super_block_first *usb1,
{
switch (UFS_SB(sb)->s_flags & UFS_ST_MASK) {
case UFS_ST_SUN:
- usb3->fs_u2.fs_sun.fs_state = cpu_to_fs32(sb, value);
+ usb3->fs_un2.fs_sun.fs_state = cpu_to_fs32(sb, value);
break;
case UFS_ST_SUNx86:
usb1->fs_u1.fs_sunx86.fs_state = cpu_to_fs32(sb, value);
break;
case UFS_ST_44BSD:
- usb3->fs_u2.fs_44.fs_state = cpu_to_fs32(sb, value);
+ usb3->fs_un2.fs_44.fs_state = cpu_to_fs32(sb, value);
break;
}
}
@@ -64,7 +70,7 @@ ufs_get_fs_npsect(struct super_block *sb, struct ufs_super_block_first *usb1,
struct ufs_super_block_third *usb3)
{
if ((UFS_SB(sb)->s_flags & UFS_ST_MASK) == UFS_ST_SUNx86)
- return fs32_to_cpu(sb, usb3->fs_u2.fs_sunx86.fs_npsect);
+ return fs32_to_cpu(sb, usb3->fs_un2.fs_sunx86.fs_npsect);
else
return fs32_to_cpu(sb, usb1->fs_u1.fs_sun.fs_npsect);
}
@@ -76,16 +82,16 @@ ufs_get_fs_qbmask(struct super_block *sb, struct ufs_super_block_third *usb3)
switch (UFS_SB(sb)->s_flags & UFS_ST_MASK) {
case UFS_ST_SUN:
- ((__fs32 *)&tmp)[0] = usb3->fs_u2.fs_sun.fs_qbmask[0];
- ((__fs32 *)&tmp)[1] = usb3->fs_u2.fs_sun.fs_qbmask[1];
+ ((__fs32 *)&tmp)[0] = usb3->fs_un2.fs_sun.fs_qbmask[0];
+ ((__fs32 *)&tmp)[1] = usb3->fs_un2.fs_sun.fs_qbmask[1];
break;
case UFS_ST_SUNx86:
- ((__fs32 *)&tmp)[0] = usb3->fs_u2.fs_sunx86.fs_qbmask[0];
- ((__fs32 *)&tmp)[1] = usb3->fs_u2.fs_sunx86.fs_qbmask[1];
+ ((__fs32 *)&tmp)[0] = usb3->fs_un2.fs_sunx86.fs_qbmask[0];
+ ((__fs32 *)&tmp)[1] = usb3->fs_un2.fs_sunx86.fs_qbmask[1];
break;
case UFS_ST_44BSD:
- ((__fs32 *)&tmp)[0] = usb3->fs_u2.fs_44.fs_qbmask[0];
- ((__fs32 *)&tmp)[1] = usb3->fs_u2.fs_44.fs_qbmask[1];
+ ((__fs32 *)&tmp)[0] = usb3->fs_un2.fs_44.fs_qbmask[0];
+ ((__fs32 *)&tmp)[1] = usb3->fs_un2.fs_44.fs_qbmask[1];
break;
}
@@ -99,16 +105,16 @@ ufs_get_fs_qfmask(struct super_block *sb, struct ufs_super_block_third *usb3)
switch (UFS_SB(sb)->s_flags & UFS_ST_MASK) {
case UFS_ST_SUN:
- ((__fs32 *)&tmp)[0] = usb3->fs_u2.fs_sun.fs_qfmask[0];
- ((__fs32 *)&tmp)[1] = usb3->fs_u2.fs_sun.fs_qfmask[1];
+ ((__fs32 *)&tmp)[0] = usb3->fs_un2.fs_sun.fs_qfmask[0];
+ ((__fs32 *)&tmp)[1] = usb3->fs_un2.fs_sun.fs_qfmask[1];
break;
case UFS_ST_SUNx86:
- ((__fs32 *)&tmp)[0] = usb3->fs_u2.fs_sunx86.fs_qfmask[0];
- ((__fs32 *)&tmp)[1] = usb3->fs_u2.fs_sunx86.fs_qfmask[1];
+ ((__fs32 *)&tmp)[0] = usb3->fs_un2.fs_sunx86.fs_qfmask[0];
+ ((__fs32 *)&tmp)[1] = usb3->fs_un2.fs_sunx86.fs_qfmask[1];
break;
case UFS_ST_44BSD:
- ((__fs32 *)&tmp)[0] = usb3->fs_u2.fs_44.fs_qfmask[0];
- ((__fs32 *)&tmp)[1] = usb3->fs_u2.fs_44.fs_qfmask[1];
+ ((__fs32 *)&tmp)[0] = usb3->fs_un2.fs_44.fs_qfmask[0];
+ ((__fs32 *)&tmp)[1] = usb3->fs_un2.fs_44.fs_qfmask[1];
break;
}
@@ -236,9 +242,8 @@ extern void ubh_brelse (struct ufs_buffer_head *);
extern void ubh_brelse_uspi (struct ufs_sb_private_info *);
extern void ubh_mark_buffer_dirty (struct ufs_buffer_head *);
extern void ubh_mark_buffer_uptodate (struct ufs_buffer_head *, int);
-extern void ubh_ll_rw_block (int, unsigned, struct ufs_buffer_head **);
+extern void ubh_ll_rw_block(int, struct ufs_buffer_head *);
extern void ubh_wait_on_buffer (struct ufs_buffer_head *);
-extern unsigned ubh_max_bcount (struct ufs_buffer_head *);
extern void ubh_bforget (struct ufs_buffer_head *);
extern int ubh_buffer_dirty (struct ufs_buffer_head *);
#define ubh_ubhcpymem(mem,ubh,size) _ubh_ubhcpymem_(uspi,mem,ubh,size)
@@ -246,6 +251,14 @@ extern void _ubh_ubhcpymem_(struct ufs_sb_private_info *, unsigned char *, struc
#define ubh_memcpyubh(ubh,mem,size) _ubh_memcpyubh_(uspi,ubh,mem,size)
extern void _ubh_memcpyubh_(struct ufs_sb_private_info *, struct ufs_buffer_head *, unsigned char *, unsigned);
+/* This functions works with cache pages*/
+extern struct page *ufs_get_locked_page(struct address_space *mapping,
+ pgoff_t index);
+static inline void ufs_put_locked_page(struct page *page)
+{
+ unlock_page(page);
+ page_cache_release(page);
+}
/*
@@ -297,40 +310,26 @@ static inline void *get_usb_offset(struct ufs_sb_private_info *uspi,
#define ubh_blkmap(ubh,begin,bit) \
((*ubh_get_addr(ubh, (begin) + ((bit) >> 3)) >> ((bit) & 7)) & (0xff >> (UFS_MAXFRAG - uspi->s_fpb)))
-
-/*
- * Macros for access to superblock array structures
- */
-#define ubh_postbl(ubh,cylno,i) \
- ((uspi->s_postblformat != UFS_DYNAMICPOSTBLFMT) \
- ? (*(__s16*)(ubh_get_addr(ubh, \
- (unsigned)(&((struct ufs_super_block *)0)->fs_opostbl) \
- + (((cylno) * 16 + (i)) << 1) ) )) \
- : (*(__s16*)(ubh_get_addr(ubh, \
- uspi->s_postbloff + (((cylno) * uspi->s_nrpos + (i)) << 1) ))))
-
-#define ubh_rotbl(ubh,i) \
- ((uspi->s_postblformat != UFS_DYNAMICPOSTBLFMT) \
- ? (*(__u8*)(ubh_get_addr(ubh, \
- (unsigned)(&((struct ufs_super_block *)0)->fs_space) + (i)))) \
- : (*(__u8*)(ubh_get_addr(ubh, uspi->s_rotbloff + (i)))))
-
/*
* Determine the number of available frags given a
* percentage to hold in reserve.
*/
-#define ufs_freespace(usb, percentreserved) \
- (ufs_blkstofrags(fs32_to_cpu(sb, (usb)->fs_cstotal.cs_nbfree)) + \
- fs32_to_cpu(sb, (usb)->fs_cstotal.cs_nffree) - (uspi->s_dsize * (percentreserved) / 100))
+static inline u64
+ufs_freespace(struct ufs_sb_private_info *uspi, int percentreserved)
+{
+ return ufs_blkstofrags(uspi->cs_total.cs_nbfree) +
+ uspi->cs_total.cs_nffree -
+ (uspi->s_dsize * (percentreserved) / 100);
+}
/*
* Macros to access cylinder group array structures
*/
#define ubh_cg_blktot(ucpi,cylno) \
- (*((__fs32*)ubh_get_addr(UCPI_UBH, (ucpi)->c_btotoff + ((cylno) << 2))))
+ (*((__fs32*)ubh_get_addr(UCPI_UBH(ucpi), (ucpi)->c_btotoff + ((cylno) << 2))))
#define ubh_cg_blks(ucpi,cylno,rpos) \
- (*((__fs16*)ubh_get_addr(UCPI_UBH, \
+ (*((__fs16*)ubh_get_addr(UCPI_UBH(ucpi), \
(ucpi)->c_boff + (((cylno) * uspi->s_nrpos + (rpos)) << 1 ))))
/*
@@ -508,29 +507,3 @@ static inline void ufs_fragacct (struct super_block * sb, unsigned blockmap,
if (fragsize > 0 && fragsize < uspi->s_fpb)
fs32_add(sb, &fraglist[fragsize], cnt);
}
-
-#define ubh_scanc(ubh,begin,size,table,mask) _ubh_scanc_(uspi,ubh,begin,size,table,mask)
-static inline unsigned _ubh_scanc_(struct ufs_sb_private_info * uspi, struct ufs_buffer_head * ubh,
- unsigned begin, unsigned size, unsigned char * table, unsigned char mask)
-{
- unsigned rest, offset;
- unsigned char * cp;
-
-
- offset = begin & ~uspi->s_fmask;
- begin >>= uspi->s_fshift;
- for (;;) {
- if ((offset + size) < uspi->s_fsize)
- rest = size;
- else
- rest = uspi->s_fsize - offset;
- size -= rest;
- cp = ubh->bh[begin]->b_data + offset;
- while ((table[*cp++] & mask) == 0 && --rest);
- if (rest || !size)
- break;
- begin++;
- offset = 0;
- }
- return (size + rest);
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-24 15:41:47 +0000