X-Git-Url: http://pilppa.org/gitweb/?a=blobdiff_plain;f=fs%2Fhfsplus%2Fextents.c;h=fec8f61227ffb28792a7b94f30417f003d786882;hb=d65d830ca06040ffe6a35ce7cb06ee642ddbd6a8;hp=e3ff56a030117325cecc46982258829390d64671;hpb=969780f8079994f161de991870feba68f49fc3d7;p=linux-2.6-omap-h63xx.git

diff --git a/fs/hfsplus/extents.c b/fs/hfsplus/extents.c
index e3ff56a0301..fec8f61227f 100644
--- a/fs/hfsplus/extents.c
+++ b/fs/hfsplus/extents.c
@@ -16,7 +16,8 @@
 #include "hfsplus_raw.h"
 
 /* Compare two extents keys, returns 0 on same, pos/neg for difference */
-int hfsplus_ext_cmp_key(hfsplus_btree_key *k1, hfsplus_btree_key *k2)
+int hfsplus_ext_cmp_key(const hfsplus_btree_key *k1,
+			const hfsplus_btree_key *k2)
 {
 	__be32 k1id, k2id;
 	__be32 k1s, k2s;
@@ -198,16 +199,16 @@ int hfsplus_get_block(struct inode *inode, sector_t iblock,
 		goto done;
 	}
 
-	down(&HFSPLUS_I(inode).extents_lock);
+	mutex_lock(&HFSPLUS_I(inode).extents_lock);
 	res = hfsplus_ext_read_extent(inode, ablock);
 	if (!res) {
 		dblock = hfsplus_ext_find_block(HFSPLUS_I(inode).cached_extents, ablock -
 					     HFSPLUS_I(inode).cached_start);
 	} else {
-		up(&HFSPLUS_I(inode).extents_lock);
+		mutex_unlock(&HFSPLUS_I(inode).extents_lock);
 		return -EIO;
 	}
-	up(&HFSPLUS_I(inode).extents_lock);
+	mutex_unlock(&HFSPLUS_I(inode).extents_lock);
 
 done:
 	dprint(DBG_EXTENT, "get_block(%lu): %llu - %u\n", inode->i_ino, (long long)iblock, dblock);
@@ -349,13 +350,12 @@ int hfsplus_file_extend(struct inode *inode)
 
 	if (HFSPLUS_SB(sb).alloc_file->i_size * 8 < HFSPLUS_SB(sb).total_blocks - HFSPLUS_SB(sb).free_blocks + 8) {
 		// extend alloc file
-		printk("extend alloc file! (%Lu,%u,%u)\n", HFSPLUS_SB(sb).alloc_file->i_size * 8,
+		printk(KERN_ERR "hfs: extend alloc file! (%Lu,%u,%u)\n", HFSPLUS_SB(sb).alloc_file->i_size * 8,
 			HFSPLUS_SB(sb).total_blocks, HFSPLUS_SB(sb).free_blocks);
 		return -ENOSPC;
-		//BUG();
 	}
 
-	down(&HFSPLUS_I(inode).extents_lock);
+	mutex_lock(&HFSPLUS_I(inode).extents_lock);
 	if (HFSPLUS_I(inode).alloc_blocks == HFSPLUS_I(inode).first_blocks)
 		goal = hfsplus_ext_lastblock(HFSPLUS_I(inode).first_extents);
 	else {
@@ -408,7 +408,7 @@ int hfsplus_file_extend(struct inode *inode)
 			goto insert_extent;
 	}
 out:
-	up(&HFSPLUS_I(inode).extents_lock);
+	mutex_unlock(&HFSPLUS_I(inode).extents_lock);
 	if (!res) {
 		HFSPLUS_I(inode).alloc_blocks += len;
 		mark_inode_dirty(inode);
@@ -443,21 +443,18 @@ void hfsplus_file_truncate(struct inode *inode)
 	if (inode->i_size > HFSPLUS_I(inode).phys_size) {
 		struct address_space *mapping = inode->i_mapping;
 		struct page *page;
-		u32 size = inode->i_size - 1;
+		void *fsdata;
+		u32 size = inode->i_size;
 		int res;
 
-		page = grab_cache_page(mapping, size >> PAGE_CACHE_SHIFT);
-		if (!page)
-			return;
-		size &= PAGE_CACHE_SIZE - 1;
-		size++;
-		res = mapping->a_ops->prepare_write(NULL, page, size, size);
-		if (!res)
-			res = mapping->a_ops->commit_write(NULL, page, size, size);
+		res = pagecache_write_begin(NULL, mapping, size, 0,
+						AOP_FLAG_UNINTERRUPTIBLE,
+						&page, &fsdata);
 		if (res)
-			inode->i_size = HFSPLUS_I(inode).phys_size;
-		unlock_page(page);
-		page_cache_release(page);
+			return;
+		res = pagecache_write_end(NULL, mapping, size, 0, 0, page, fsdata);
+		if (res < 0)
+			return;
 		mark_inode_dirty(inode);
 		return;
 	} else if (inode->i_size == HFSPLUS_I(inode).phys_size)
@@ -468,7 +465,7 @@ void hfsplus_file_truncate(struct inode *inode)
 	if (blk_cnt == alloc_cnt)
 		goto out;
 
-	down(&HFSPLUS_I(inode).extents_lock);
+	mutex_lock(&HFSPLUS_I(inode).extents_lock);
 	hfs_find_init(HFSPLUS_SB(sb).ext_tree, &fd);
 	while (1) {
 		if (alloc_cnt == HFSPLUS_I(inode).first_blocks) {
@@ -495,7 +492,7 @@ void hfsplus_file_truncate(struct inode *inode)
 		hfs_brec_remove(&fd);
 	}
 	hfs_find_exit(&fd);
-	up(&HFSPLUS_I(inode).extents_lock);
+	mutex_unlock(&HFSPLUS_I(inode).extents_lock);
 
 	HFSPLUS_I(inode).alloc_blocks = blk_cnt;
 out: