forked from luck/tmp_suning_uos_patched
[PATCH] ufs cleanup
Here is update of ufs cleanup patch, brought on by the recently fixed ubh_get_usb_second() bug that made some ugly code rather painfully obvious. It also includes - fix compilation warnings which appears if debug mode turn on - remove unnecessary duplication of code to support UFS2 I tested it on ufs1 and ufs2 file-systems. Signed-off-by: Evgeniy Dushistov <dushistov@mail.ru> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Evgeniy
Linus Torvalds
parent
59af70385f
commit
7b4ee73e28
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@ -49,7 +49,7 @@ void ufs_free_fragments (struct inode * inode, unsigned fragment, unsigned count
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sb = inode->i_sb;
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uspi = UFS_SB(sb)->s_uspi;
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usb1 = ubh_get_usb_first(USPI_UBH);
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usb1 = ubh_get_usb_first(uspi);
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UFSD(("ENTER, fragment %u, count %u\n", fragment, count))
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@ -81,8 +81,9 @@ void ufs_free_fragments (struct inode * inode, unsigned fragment, unsigned count
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for (i = bit; i < end_bit; i++) {
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if (ubh_isclr (UCPI_UBH, ucpi->c_freeoff, i))
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ubh_setbit (UCPI_UBH, ucpi->c_freeoff, i);
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else ufs_error (sb, "ufs_free_fragments",
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"bit already cleared for fragment %u", i);
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else
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ufs_error (sb, "ufs_free_fragments",
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"bit already cleared for fragment %u", i);
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}
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DQUOT_FREE_BLOCK (inode, count);
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@ -143,7 +144,7 @@ void ufs_free_blocks (struct inode * inode, unsigned fragment, unsigned count) {
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sb = inode->i_sb;
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uspi = UFS_SB(sb)->s_uspi;
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usb1 = ubh_get_usb_first(USPI_UBH);
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usb1 = ubh_get_usb_first(uspi);
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UFSD(("ENTER, fragment %u, count %u\n", fragment, count))
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@ -247,7 +248,7 @@ unsigned ufs_new_fragments (struct inode * inode, __fs32 * p, unsigned fragment,
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sb = inode->i_sb;
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uspi = UFS_SB(sb)->s_uspi;
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usb1 = ubh_get_usb_first(USPI_UBH);
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usb1 = ubh_get_usb_first(uspi);
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*err = -ENOSPC;
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lock_super (sb);
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@ -407,7 +408,7 @@ ufs_add_fragments (struct inode * inode, unsigned fragment,
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sb = inode->i_sb;
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uspi = UFS_SB(sb)->s_uspi;
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usb1 = ubh_get_usb_first (USPI_UBH);
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usb1 = ubh_get_usb_first (uspi);
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count = newcount - oldcount;
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cgno = ufs_dtog(fragment);
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@ -490,7 +491,7 @@ static unsigned ufs_alloc_fragments (struct inode * inode, unsigned cgno,
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sb = inode->i_sb;
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uspi = UFS_SB(sb)->s_uspi;
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usb1 = ubh_get_usb_first(USPI_UBH);
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usb1 = ubh_get_usb_first(uspi);
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oldcg = cgno;
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/*
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@ -606,7 +607,7 @@ static unsigned ufs_alloccg_block (struct inode * inode,
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sb = inode->i_sb;
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uspi = UFS_SB(sb)->s_uspi;
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usb1 = ubh_get_usb_first(USPI_UBH);
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usb1 = ubh_get_usb_first(uspi);
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ucg = ubh_get_ucg(UCPI_UBH);
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if (goal == 0) {
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@ -663,7 +664,7 @@ static unsigned ufs_bitmap_search (struct super_block * sb,
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UFSD(("ENTER, cg %u, goal %u, count %u\n", ucpi->c_cgx, goal, count))
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uspi = UFS_SB(sb)->s_uspi;
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usb1 = ubh_get_usb_first (USPI_UBH);
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usb1 = ubh_get_usb_first (uspi);
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ucg = ubh_get_ucg(UCPI_UBH);
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if (goal)
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@ -72,7 +72,7 @@ void ufs_free_inode (struct inode * inode)
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sb = inode->i_sb;
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uspi = UFS_SB(sb)->s_uspi;
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usb1 = ubh_get_usb_first(USPI_UBH);
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usb1 = ubh_get_usb_first(uspi);
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ino = inode->i_ino;
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@ -167,7 +167,7 @@ struct inode * ufs_new_inode(struct inode * dir, int mode)
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ufsi = UFS_I(inode);
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sbi = UFS_SB(sb);
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uspi = sbi->s_uspi;
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usb1 = ubh_get_usb_first(USPI_UBH);
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usb1 = ubh_get_usb_first(uspi);
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lock_super (sb);
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@ -61,7 +61,7 @@ static int ufs_block_to_path(struct inode *inode, sector_t i_block, sector_t off
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int n = 0;
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UFSD(("ptrs=uspi->s_apb = %d,double_blocks=%d \n",ptrs,double_blocks));
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UFSD(("ptrs=uspi->s_apb = %d,double_blocks=%ld \n",ptrs,double_blocks));
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if (i_block < 0) {
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ufs_warning(inode->i_sb, "ufs_block_to_path", "block < 0");
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} else if (i_block < direct_blocks) {
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@ -104,7 +104,7 @@ u64 ufs_frag_map(struct inode *inode, sector_t frag)
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unsigned flags = UFS_SB(sb)->s_flags;
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u64 temp = 0L;
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UFSD((": frag = %lu depth = %d\n",frag,depth));
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UFSD((": frag = %llu depth = %d\n", (unsigned long long)frag, depth));
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UFSD((": uspi->s_fpbshift = %d ,uspi->s_apbmask = %x, mask=%llx\n",uspi->s_fpbshift,uspi->s_apbmask,mask));
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if (depth == 0)
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@ -365,9 +365,10 @@ static struct buffer_head * ufs_block_getfrag (struct inode *inode,
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sync_dirty_buffer(bh);
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inode->i_ctime = CURRENT_TIME_SEC;
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mark_inode_dirty(inode);
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UFSD(("result %u\n", tmp + blockoff));
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out:
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brelse (bh);
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UFSD(("EXIT, result %u\n", tmp + blockoff))
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UFSD(("EXIT\n"));
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return result;
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}
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@ -386,7 +387,7 @@ static int ufs_getfrag_block (struct inode *inode, sector_t fragment, struct buf
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if (!create) {
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phys64 = ufs_frag_map(inode, fragment);
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UFSD(("phys64 = %lu \n",phys64));
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UFSD(("phys64 = %llu \n",phys64));
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if (phys64)
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map_bh(bh_result, sb, phys64);
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return 0;
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@ -401,7 +402,7 @@ static int ufs_getfrag_block (struct inode *inode, sector_t fragment, struct buf
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lock_kernel();
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UFSD(("ENTER, ino %lu, fragment %u\n", inode->i_ino, fragment))
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UFSD(("ENTER, ino %lu, fragment %llu\n", inode->i_ino, (unsigned long long)fragment))
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if (fragment < 0)
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goto abort_negative;
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if (fragment >
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@ -221,7 +221,7 @@ void ufs_error (struct super_block * sb, const char * function,
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va_list args;
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uspi = UFS_SB(sb)->s_uspi;
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usb1 = ubh_get_usb_first(USPI_UBH);
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usb1 = ubh_get_usb_first(uspi);
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if (!(sb->s_flags & MS_RDONLY)) {
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usb1->fs_clean = UFS_FSBAD;
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@ -253,7 +253,7 @@ void ufs_panic (struct super_block * sb, const char * function,
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va_list args;
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uspi = UFS_SB(sb)->s_uspi;
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usb1 = ubh_get_usb_first(USPI_UBH);
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usb1 = ubh_get_usb_first(uspi);
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if (!(sb->s_flags & MS_RDONLY)) {
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usb1->fs_clean = UFS_FSBAD;
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@ -420,21 +420,18 @@ static int ufs_read_cylinder_structures (struct super_block *sb) {
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if (i + uspi->s_fpb > blks)
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size = (blks - i) * uspi->s_fsize;
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if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2) {
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if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2)
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ubh = ubh_bread(sb,
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fs64_to_cpu(sb, usb->fs_u11.fs_u2.fs_csaddr) + i, size);
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if (!ubh)
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goto failed;
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ubh_ubhcpymem (space, ubh, size);
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sbi->s_csp[ufs_fragstoblks(i)]=(struct ufs_csum *)space;
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}
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else {
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else
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ubh = ubh_bread(sb, uspi->s_csaddr + i, size);
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if (!ubh)
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goto failed;
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ubh_ubhcpymem(space, ubh, size);
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sbi->s_csp[ufs_fragstoblks(i)]=(struct ufs_csum *)space;
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}
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if (!ubh)
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goto failed;
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ubh_ubhcpymem (space, ubh, size);
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sbi->s_csp[ufs_fragstoblks(i)]=(struct ufs_csum *)space;
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space += size;
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ubh_brelse (ubh);
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ubh = NULL;
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@ -539,6 +536,7 @@ static int ufs_fill_super(struct super_block *sb, void *data, int silent)
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struct inode *inode;
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unsigned block_size, super_block_size;
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unsigned flags;
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unsigned super_block_offset;
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uspi = NULL;
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ubh = NULL;
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@ -586,10 +584,11 @@ static int ufs_fill_super(struct super_block *sb, void *data, int silent)
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if (!uspi)
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goto failed;
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super_block_offset=UFS_SBLOCK;
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/* Keep 2Gig file limit. Some UFS variants need to override
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this but as I don't know which I'll let those in the know loosen
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the rules */
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switch (sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) {
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case UFS_MOUNT_UFSTYPE_44BSD:
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UFSD(("ufstype=44bsd\n"))
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@ -601,7 +600,8 @@ static int ufs_fill_super(struct super_block *sb, void *data, int silent)
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flags |= UFS_DE_44BSD | UFS_UID_44BSD | UFS_ST_44BSD | UFS_CG_44BSD;
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break;
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case UFS_MOUNT_UFSTYPE_UFS2:
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UFSD(("ufstype=ufs2\n"))
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UFSD(("ufstype=ufs2\n"));
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super_block_offset=SBLOCK_UFS2;
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uspi->s_fsize = block_size = 512;
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uspi->s_fmask = ~(512 - 1);
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uspi->s_fshift = 9;
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@ -725,19 +725,16 @@ static int ufs_fill_super(struct super_block *sb, void *data, int silent)
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/*
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* read ufs super block from device
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*/
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if ( (flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2) {
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ubh = ubh_bread_uspi(uspi, sb, uspi->s_sbbase + SBLOCK_UFS2/block_size, super_block_size);
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}
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else {
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ubh = ubh_bread_uspi(uspi, sb, uspi->s_sbbase + UFS_SBLOCK/block_size, super_block_size);
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}
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ubh = ubh_bread_uspi(uspi, sb, uspi->s_sbbase + super_block_offset/block_size, super_block_size);
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if (!ubh)
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goto failed;
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usb1 = ubh_get_usb_first(USPI_UBH);
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usb2 = ubh_get_usb_second(USPI_UBH);
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usb3 = ubh_get_usb_third(USPI_UBH);
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usb1 = ubh_get_usb_first(uspi);
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usb2 = ubh_get_usb_second(uspi);
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usb3 = ubh_get_usb_third(uspi);
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usb = (struct ufs_super_block *)
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((struct ufs_buffer_head *)uspi)->bh[0]->b_data ;
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@ -1006,8 +1003,8 @@ static void ufs_write_super (struct super_block *sb) {
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UFSD(("ENTER\n"))
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flags = UFS_SB(sb)->s_flags;
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uspi = UFS_SB(sb)->s_uspi;
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usb1 = ubh_get_usb_first(USPI_UBH);
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usb3 = ubh_get_usb_third(USPI_UBH);
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usb1 = ubh_get_usb_first(uspi);
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usb3 = ubh_get_usb_third(uspi);
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if (!(sb->s_flags & MS_RDONLY)) {
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usb1->fs_time = cpu_to_fs32(sb, get_seconds());
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@ -1049,8 +1046,8 @@ static int ufs_remount (struct super_block *sb, int *mount_flags, char *data)
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uspi = UFS_SB(sb)->s_uspi;
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flags = UFS_SB(sb)->s_flags;
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usb1 = ubh_get_usb_first(USPI_UBH);
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usb3 = ubh_get_usb_third(USPI_UBH);
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usb1 = ubh_get_usb_first(uspi);
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usb3 = ubh_get_usb_third(uspi);
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/*
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* Allow the "check" option to be passed as a remount option.
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@ -1124,7 +1121,7 @@ static int ufs_statfs (struct super_block *sb, struct kstatfs *buf)
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lock_kernel();
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uspi = UFS_SB(sb)->s_uspi;
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usb1 = ubh_get_usb_first (USPI_UBH);
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usb1 = ubh_get_usb_first (uspi);
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usb = (struct ufs_super_block *)
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((struct ufs_buffer_head *)uspi)->bh[0]->b_data ;
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@ -249,18 +249,28 @@ extern void _ubh_memcpyubh_(struct ufs_sb_private_info *, struct ufs_buffer_head
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/*
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* macros to get important structures from ufs_buffer_head
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* macros and inline function to get important structures from ufs_sb_private_info
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*/
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#define ubh_get_usb_first(ubh) \
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((struct ufs_super_block_first *)((ubh)->bh[0]->b_data))
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#define ubh_get_usb_second(ubh) \
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((struct ufs_super_block_second *)((ubh)->\
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bh[UFS_SECTOR_SIZE >> uspi->s_fshift]->b_data + (UFS_SECTOR_SIZE & ~uspi->s_fmask)))
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static inline void *get_usb_offset(struct ufs_sb_private_info *uspi,
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unsigned int offset)
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{
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unsigned int index;
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index = offset >> uspi->s_fshift;
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offset &= ~uspi->s_fmask;
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return uspi->s_ubh.bh[index]->b_data + offset;
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}
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#define ubh_get_usb_first(uspi) \
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((struct ufs_super_block_first *)get_usb_offset((uspi), 0))
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#define ubh_get_usb_second(uspi) \
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((struct ufs_super_block_second *)get_usb_offset((uspi), UFS_SECTOR_SIZE))
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#define ubh_get_usb_third(uspi) \
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((struct ufs_super_block_third *)get_usb_offset((uspi), 2*UFS_SECTOR_SIZE))
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#define ubh_get_usb_third(ubh) \
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((struct ufs_super_block_third *)((ubh)-> \
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bh[UFS_SECTOR_SIZE*2 >> uspi->s_fshift]->b_data + (UFS_SECTOR_SIZE*2 & ~uspi->s_fmask)))
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#define ubh_get_ucg(ubh) \
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((struct ufs_cylinder_group *)((ubh)->bh[0]->b_data))
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