Merge commit 'v2.6.39-rc7' into sched/core

1 files changed, 43 insertions, 75 deletions

diff --git a/fs/hpfs/alloc.c b/fs/hpfs/alloc.c
index 5503e2c2891..7a5eb2c718c 100644
--- a/fs/hpfs/alloc.c
+++ b/fs/hpfs/alloc.c
@@ -8,8 +8,6 @@
 
 #include "hpfs_fn.h"
 
-static int hpfs_alloc_if_possible_nolock(struct super_block *s, secno sec);
-
 /*
  * Check if a sector is allocated in bitmap
  * This is really slow. Turned on only if chk==2
@@ -18,9 +16,9 @@ static int hpfs_alloc_if_possible_nolock(struct super_block *s, secno sec);
 static int chk_if_allocated(struct super_block *s, secno sec, char *msg)
 {
 	struct quad_buffer_head qbh;
-	unsigned *bmp;
+	u32 *bmp;
 	if (!(bmp = hpfs_map_bitmap(s, sec >> 14, &qbh, "chk"))) goto fail;
-	if ((bmp[(sec & 0x3fff) >> 5] >> (sec & 0x1f)) & 1) {
+	if ((cpu_to_le32(bmp[(sec & 0x3fff) >> 5]) >> (sec & 0x1f)) & 1) {
 		hpfs_error(s, "sector '%s' - %08x not allocated in bitmap", msg, sec);
 		goto fail1;
 	}
@@ -28,7 +26,7 @@ static int chk_if_allocated(struct super_block *s, secno sec, char *msg)
 	if (sec >= hpfs_sb(s)->sb_dirband_start && sec < hpfs_sb(s)->sb_dirband_start + hpfs_sb(s)->sb_dirband_size) {
 		unsigned ssec = (sec - hpfs_sb(s)->sb_dirband_start) / 4;
 		if (!(bmp = hpfs_map_dnode_bitmap(s, &qbh))) goto fail;
-		if ((bmp[ssec >> 5] >> (ssec & 0x1f)) & 1) {
+		if ((le32_to_cpu(bmp[ssec >> 5]) >> (ssec & 0x1f)) & 1) {
 			hpfs_error(s, "sector '%s' - %08x not allocated in directory bitmap", msg, sec);
 			goto fail1;
 		}
@@ -75,7 +73,6 @@ static secno alloc_in_bmp(struct super_block *s, secno near, unsigned n, unsigne
 		hpfs_error(s, "Bad allocation size: %d", n);
 		return 0;
 	}
-	lock_super(s);
 	if (bs != ~0x3fff) {
 		if (!(bmp = hpfs_map_bitmap(s, near >> 14, &qbh, "aib"))) goto uls;
 	} else {
@@ -85,10 +82,6 @@ static secno alloc_in_bmp(struct super_block *s, secno near, unsigned n, unsigne
 		ret = bs + nr;
 		goto rt;
 	}
-	/*if (!tstbits(bmp, nr + n, n + forward)) {
-		ret = bs + nr + n;
-		goto rt;
-	}*/
 	q = nr + n; b = 0;
 	while ((a = tstbits(bmp, q, n + forward)) != 0) {
 		q += a;
@@ -105,14 +98,14 @@ static secno alloc_in_bmp(struct super_block *s, secno near, unsigned n, unsigne
 		goto rt;
 	}
 	nr >>= 5;
-	/*for (i = nr + 1; i != nr; i++, i &= 0x1ff) {*/
+	/*for (i = nr + 1; i != nr; i++, i &= 0x1ff) */
 	i = nr;
 	do {
-		if (!bmp[i]) goto cont;
-		if (n + forward >= 0x3f && bmp[i] != -1) goto cont;
+		if (!le32_to_cpu(bmp[i])) goto cont;
+		if (n + forward >= 0x3f && le32_to_cpu(bmp[i]) != 0xffffffff) goto cont;
 		q = i<<5;
 		if (i > 0) {
-			unsigned k = bmp[i-1];
+			unsigned k = le32_to_cpu(bmp[i-1]);
 			while (k & 0x80000000) {
 				q--; k <<= 1;
 			}
@@ -132,18 +125,17 @@ static secno alloc_in_bmp(struct super_block *s, secno near, unsigned n, unsigne
 	} while (i != nr);
 	rt:
 	if (ret) {
-		if (hpfs_sb(s)->sb_chk && ((ret >> 14) != (bs >> 14) || (bmp[(ret & 0x3fff) >> 5] | ~(((1 << n) - 1) << (ret & 0x1f))) != 0xffffffff)) {
+		if (hpfs_sb(s)->sb_chk && ((ret >> 14) != (bs >> 14) || (le32_to_cpu(bmp[(ret & 0x3fff) >> 5]) | ~(((1 << n) - 1) << (ret & 0x1f))) != 0xffffffff)) {
 			hpfs_error(s, "Allocation doesn't work! Wanted %d, allocated at %08x", n, ret);
 			ret = 0;
 			goto b;
 		}
-		bmp[(ret & 0x3fff) >> 5] &= ~(((1 << n) - 1) << (ret & 0x1f));
+		bmp[(ret & 0x3fff) >> 5] &= cpu_to_le32(~(((1 << n) - 1) << (ret & 0x1f)));
 		hpfs_mark_4buffers_dirty(&qbh);
 	}
 	b:
 	hpfs_brelse4(&qbh);
 	uls:
-	unlock_super(s);
 	return ret;
 }
 
@@ -155,7 +147,7 @@ static secno alloc_in_bmp(struct super_block *s, secno near, unsigned n, unsigne
  *				sectors
  */
 
-secno hpfs_alloc_sector(struct super_block *s, secno near, unsigned n, int forward, int lock)
+secno hpfs_alloc_sector(struct super_block *s, secno near, unsigned n, int forward)
 {
 	secno sec;
 	int i;
@@ -167,7 +159,6 @@ secno hpfs_alloc_sector(struct super_block *s, secno near, unsigned n, int forwa
 		forward = -forward;
 		f_p = 1;
 	}
-	if (lock) hpfs_lock_creation(s);
 	n_bmps = (sbi->sb_fs_size + 0x4000 - 1) >> 14;
 	if (near && near < sbi->sb_fs_size) {
 		if ((sec = alloc_in_bmp(s, near, n, f_p ? forward : forward/4))) goto ret;
@@ -214,18 +205,17 @@ secno hpfs_alloc_sector(struct super_block *s, secno near, unsigned n, int forwa
 	ret:
 	if (sec && f_p) {
 		for (i = 0; i < forward; i++) {
-			if (!hpfs_alloc_if_possible_nolock(s, sec + i + 1)) {
+			if (!hpfs_alloc_if_possible(s, sec + i + 1)) {
 				hpfs_error(s, "Prealloc doesn't work! Wanted %d, allocated at %08x, can't allocate %d", forward, sec, i);
 				sec = 0;
 				break;
 			}
 		}
 	}
-	if (lock) hpfs_unlock_creation(s);
 	return sec;
 }
 
-static secno alloc_in_dirband(struct super_block *s, secno near, int lock)
+static secno alloc_in_dirband(struct super_block *s, secno near)
 {
 	unsigned nr = near;
 	secno sec;
@@ -236,49 +226,35 @@ static secno alloc_in_dirband(struct super_block *s, secno near, int lock)
 		nr = sbi->sb_dirband_start + sbi->sb_dirband_size - 4;
 	nr -= sbi->sb_dirband_start;
 	nr >>= 2;
-	if (lock) hpfs_lock_creation(s);
 	sec = alloc_in_bmp(s, (~0x3fff) | nr, 1, 0);
-	if (lock) hpfs_unlock_creation(s);
 	if (!sec) return 0;
 	return ((sec & 0x3fff) << 2) + sbi->sb_dirband_start;
 }
 
 /* Alloc sector if it's free */
 
-static int hpfs_alloc_if_possible_nolock(struct super_block *s, secno sec)
+int hpfs_alloc_if_possible(struct super_block *s, secno sec)
 {
 	struct quad_buffer_head qbh;
-	unsigned *bmp;
-	lock_super(s);
+	u32 *bmp;
 	if (!(bmp = hpfs_map_bitmap(s, sec >> 14, &qbh, "aip"))) goto end;
-	if (bmp[(sec & 0x3fff) >> 5] & (1 << (sec & 0x1f))) {
-		bmp[(sec & 0x3fff) >> 5] &= ~(1 << (sec & 0x1f));
+	if (le32_to_cpu(bmp[(sec & 0x3fff) >> 5]) & (1 << (sec & 0x1f))) {
+		bmp[(sec & 0x3fff) >> 5] &= cpu_to_le32(~(1 << (sec & 0x1f)));
 		hpfs_mark_4buffers_dirty(&qbh);
 		hpfs_brelse4(&qbh);
-		unlock_super(s);
 		return 1;
 	}
 	hpfs_brelse4(&qbh);
 	end:
-	unlock_super(s);
 	return 0;
 }
 
-int hpfs_alloc_if_possible(struct super_block *s, secno sec)
-{
-	int r;
-	hpfs_lock_creation(s);
-	r = hpfs_alloc_if_possible_nolock(s, sec);
-	hpfs_unlock_creation(s);
-	return r;
-}
-
 /* Free sectors in bitmaps */
 
 void hpfs_free_sectors(struct super_block *s, secno sec, unsigned n)
 {
 	struct quad_buffer_head qbh;
-	unsigned *bmp;
+	u32 *bmp;
 	struct hpfs_sb_info *sbi = hpfs_sb(s);
 	/*printk("2 - ");*/
 	if (!n) return;
@@ -286,26 +262,22 @@ void hpfs_free_sectors(struct super_block *s, secno sec, unsigned n)
 		hpfs_error(s, "Trying to free reserved sector %08x", sec);
 		return;
 	}
-	lock_super(s);
 	sbi->sb_max_fwd_alloc += n > 0xffff ? 0xffff : n;
 	if (sbi->sb_max_fwd_alloc > 0xffffff) sbi->sb_max_fwd_alloc = 0xffffff;
 	new_map:
 	if (!(bmp = hpfs_map_bitmap(s, sec >> 14, &qbh, "free"))) {
-		unlock_super(s);
 		return;
 	}	
 	new_tst:
-	if ((bmp[(sec & 0x3fff) >> 5] >> (sec & 0x1f) & 1)) {
+	if ((le32_to_cpu(bmp[(sec & 0x3fff) >> 5]) >> (sec & 0x1f) & 1)) {
 		hpfs_error(s, "sector %08x not allocated", sec);
 		hpfs_brelse4(&qbh);
-		unlock_super(s);
 		return;
 	}
-	bmp[(sec & 0x3fff) >> 5] |= 1 << (sec & 0x1f);
+	bmp[(sec & 0x3fff) >> 5] |= cpu_to_le32(1 << (sec & 0x1f));
 	if (!--n) {
 		hpfs_mark_4buffers_dirty(&qbh);
 		hpfs_brelse4(&qbh);
-		unlock_super(s);
 		return;
 	}	
 	if (!(++sec & 0x3fff)) {
@@ -327,13 +299,13 @@ int hpfs_check_free_dnodes(struct super_block *s, int n)
 	int n_bmps = (hpfs_sb(s)->sb_fs_size + 0x4000 - 1) >> 14;
 	int b = hpfs_sb(s)->sb_c_bitmap & 0x0fffffff;
 	int i, j;
-	unsigned *bmp;
+	u32 *bmp;
 	struct quad_buffer_head qbh;
 	if ((bmp = hpfs_map_dnode_bitmap(s, &qbh))) {
 		for (j = 0; j < 512; j++) {
 			unsigned k;
-			if (!bmp[j]) continue;
-			for (k = bmp[j]; k; k >>= 1) if (k & 1) if (!--n) {
+			if (!le32_to_cpu(bmp[j])) continue;
+			for (k = le32_to_cpu(bmp[j]); k; k >>= 1) if (k & 1) if (!--n) {
 				hpfs_brelse4(&qbh);
 				return 0;
 			}
@@ -352,10 +324,10 @@ int hpfs_check_free_dnodes(struct super_block *s, int n)
 	chk_bmp:
 	if (bmp) {
 		for (j = 0; j < 512; j++) {
-			unsigned k;
-			if (!bmp[j]) continue;
+			u32 k;
+			if (!le32_to_cpu(bmp[j])) continue;
 			for (k = 0xf; k; k <<= 4)
-				if ((bmp[j] & k) == k) {
+				if ((le32_to_cpu(bmp[j]) & k) == k) {
 					if (!--n) {
 						hpfs_brelse4(&qbh);
 						return 0;
@@ -379,44 +351,40 @@ void hpfs_free_dnode(struct super_block *s, dnode_secno dno)
 		hpfs_free_sectors(s, dno, 4);
 	} else {
 		struct quad_buffer_head qbh;
-		unsigned *bmp;
+		u32 *bmp;
 		unsigned ssec = (dno - hpfs_sb(s)->sb_dirband_start) / 4;
-		lock_super(s);
 		if (!(bmp = hpfs_map_dnode_bitmap(s, &qbh))) {
-			unlock_super(s);
 			return;
 		}
-		bmp[ssec >> 5] |= 1 << (ssec & 0x1f);
+		bmp[ssec >> 5] |= cpu_to_le32(1 << (ssec & 0x1f));
 		hpfs_mark_4buffers_dirty(&qbh);
 		hpfs_brelse4(&qbh);
-		unlock_super(s);
 	}
 }
 
 struct dnode *hpfs_alloc_dnode(struct super_block *s, secno near,
-			 dnode_secno *dno, struct quad_buffer_head *qbh,
-			 int lock)
+			 dnode_secno *dno, struct quad_buffer_head *qbh)
 {
 	struct dnode *d;
 	if (hpfs_count_one_bitmap(s, hpfs_sb(s)->sb_dmap) > FREE_DNODES_ADD) {
-		if (!(*dno = alloc_in_dirband(s, near, lock)))
-			if (!(*dno = hpfs_alloc_sector(s, near, 4, 0, lock))) return NULL;
+		if (!(*dno = alloc_in_dirband(s, near)))
+			if (!(*dno = hpfs_alloc_sector(s, near, 4, 0))) return NULL;
 	} else {
-		if (!(*dno = hpfs_alloc_sector(s, near, 4, 0, lock)))
-			if (!(*dno = alloc_in_dirband(s, near, lock))) return NULL;
+		if (!(*dno = hpfs_alloc_sector(s, near, 4, 0)))
+			if (!(*dno = alloc_in_dirband(s, near))) return NULL;
 	}
 	if (!(d = hpfs_get_4sectors(s, *dno, qbh))) {
 		hpfs_free_dnode(s, *dno);
 		return NULL;
 	}
 	memset(d, 0, 2048);
-	d->magic = DNODE_MAGIC;
-	d->first_free = 52;
+	d->magic = cpu_to_le32(DNODE_MAGIC);
+	d->first_free = cpu_to_le32(52);
 	d->dirent[0] = 32;
 	d->dirent[2] = 8;
 	d->dirent[30] = 1;
 	d->dirent[31] = 255;
-	d->self = *dno;
+	d->self = cpu_to_le32(*dno);
 	return d;
 }
 
@@ -424,16 +392,16 @@ struct fnode *hpfs_alloc_fnode(struct super_block *s, secno near, fnode_secno *f
 			  struct buffer_head **bh)
 {
 	struct fnode *f;
-	if (!(*fno = hpfs_alloc_sector(s, near, 1, FNODE_ALLOC_FWD, 1))) return NULL;
+	if (!(*fno = hpfs_alloc_sector(s, near, 1, FNODE_ALLOC_FWD))) return NULL;
 	if (!(f = hpfs_get_sector(s, *fno, bh))) {
 		hpfs_free_sectors(s, *fno, 1);
 		return NULL;
 	}	
 	memset(f, 0, 512);
-	f->magic = FNODE_MAGIC;
-	f->ea_offs = 0xc4;
+	f->magic = cpu_to_le32(FNODE_MAGIC);
+	f->ea_offs = cpu_to_le16(0xc4);
 	f->btree.n_free_nodes = 8;
-	f->btree.first_free = 8;
+	f->btree.first_free = cpu_to_le16(8);
 	return f;
 }
 
@@ -441,16 +409,16 @@ struct anode *hpfs_alloc_anode(struct super_block *s, secno near, anode_secno *a
 			  struct buffer_head **bh)
 {
 	struct anode *a;
-	if (!(*ano = hpfs_alloc_sector(s, near, 1, ANODE_ALLOC_FWD, 1))) return NULL;
+	if (!(*ano = hpfs_alloc_sector(s, near, 1, ANODE_ALLOC_FWD))) return NULL;
 	if (!(a = hpfs_get_sector(s, *ano, bh))) {
 		hpfs_free_sectors(s, *ano, 1);
 		return NULL;
 	}
 	memset(a, 0, 512);
-	a->magic = ANODE_MAGIC;
-	a->self = *ano;
+	a->magic = cpu_to_le32(ANODE_MAGIC);
+	a->self = cpu_to_le32(*ano);
 	a->btree.n_free_nodes = 40;
 	a->btree.n_used_nodes = 0;
-	a->btree.first_free = 8;
+	a->btree.first_free = cpu_to_le16(8);
 	return a;
 }