X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=fs%2Focfs2%2Fsuballoc.c;h=7e397e2c25dd219fd55e3f16c363488fb57223e6;hb=20118ff97823822bf4d52ccb528ce2b5042c3057;hp=0da655ae5d6f807588a2b76a599b8c5135cacb74;hpb=ded1504dfa0083661fdd1a0a5f021cb7313ffe04;p=linux-2.6-omap-h63xx.git diff --git a/fs/ocfs2/suballoc.c b/fs/ocfs2/suballoc.c index 0da655ae5d6..7e397e2c25d 100644 --- a/fs/ocfs2/suballoc.c +++ b/fs/ocfs2/suballoc.c @@ -98,19 +98,9 @@ static int ocfs2_relink_block_group(handle_t *handle, u16 chain); static inline int ocfs2_block_group_reasonably_empty(struct ocfs2_group_desc *bg, u32 wanted); -static int ocfs2_free_suballoc_bits(handle_t *handle, - struct inode *alloc_inode, - struct buffer_head *alloc_bh, - unsigned int start_bit, - u64 bg_blkno, - unsigned int count); -static inline u64 ocfs2_which_suballoc_group(u64 block, - unsigned int bit); static inline u32 ocfs2_desc_bitmap_to_cluster_off(struct inode *inode, u64 bg_blkno, u16 bg_bit_off); -static inline u64 ocfs2_which_cluster_group(struct inode *inode, - u32 cluster); static inline void ocfs2_block_to_cluster_group(struct inode *inode, u64 data_blkno, u64 *bg_blkno, @@ -122,7 +112,7 @@ void ocfs2_free_alloc_context(struct ocfs2_alloc_context *ac) if (inode) { if (ac->ac_which != OCFS2_AC_USE_LOCAL) - ocfs2_meta_unlock(inode, 1); + ocfs2_inode_unlock(inode, 1); mutex_unlock(&inode->i_mutex); @@ -139,9 +129,9 @@ static u32 ocfs2_bits_per_group(struct ocfs2_chain_list *cl) } /* somewhat more expensive than our other checks, so use sparingly. */ -static int ocfs2_check_group_descriptor(struct super_block *sb, - struct ocfs2_dinode *di, - struct ocfs2_group_desc *gd) +int ocfs2_check_group_descriptor(struct super_block *sb, + struct ocfs2_dinode *di, + struct ocfs2_group_desc *gd) { unsigned int max_bits; @@ -420,7 +410,7 @@ static int ocfs2_reserve_suballoc_bits(struct ocfs2_super *osb, mutex_lock(&alloc_inode->i_mutex); - status = ocfs2_meta_lock(alloc_inode, &bh, 1); + status = ocfs2_inode_lock(alloc_inode, &bh, 1); if (status < 0) { mutex_unlock(&alloc_inode->i_mutex); iput(alloc_inode); @@ -496,13 +486,7 @@ int ocfs2_reserve_new_metadata(struct ocfs2_super *osb, (*ac)->ac_bits_wanted = ocfs2_extend_meta_needed(fe); (*ac)->ac_which = OCFS2_AC_USE_META; - -#ifndef OCFS2_USE_ALL_METADATA_SUBALLOCATORS - slot = 0; -#else slot = osb->slot_num; -#endif - (*ac)->ac_group_search = ocfs2_block_group_search; status = ocfs2_reserve_suballoc_bits(osb, (*ac), @@ -849,9 +833,9 @@ static int ocfs2_relink_block_group(handle_t *handle, } mlog(0, "Suballoc %llu, chain %u, move group %llu to top, prev = %llu\n", - (unsigned long long)fe->i_blkno, chain, - (unsigned long long)bg->bg_blkno, - (unsigned long long)prev_bg->bg_blkno); + (unsigned long long)le64_to_cpu(fe->i_blkno), chain, + (unsigned long long)le64_to_cpu(bg->bg_blkno), + (unsigned long long)le64_to_cpu(prev_bg->bg_blkno)); fe_ptr = le64_to_cpu(fe->id2.i_chain.cl_recs[chain].c_blkno); bg_ptr = le64_to_cpu(bg->bg_next_group); @@ -1162,7 +1146,7 @@ static int ocfs2_search_chain(struct ocfs2_alloc_context *ac, } mlog(0, "alloc succeeds: we give %u bits from block group %llu\n", - tmp_bits, (unsigned long long)bg->bg_blkno); + tmp_bits, (unsigned long long)le64_to_cpu(bg->bg_blkno)); *num_bits = tmp_bits; @@ -1227,7 +1211,7 @@ static int ocfs2_search_chain(struct ocfs2_alloc_context *ac, } mlog(0, "Allocated %u bits from suballocator %llu\n", *num_bits, - (unsigned long long)fe->i_blkno); + (unsigned long long)le64_to_cpu(fe->i_blkno)); *bg_blkno = le64_to_cpu(bg->bg_blkno); *bits_left = le16_to_cpu(bg->bg_free_bits_count); @@ -1457,8 +1441,7 @@ static inline u32 ocfs2_desc_bitmap_to_cluster_off(struct inode *inode, /* given a cluster offset, calculate which block group it belongs to * and return that block offset. */ -static inline u64 ocfs2_which_cluster_group(struct inode *inode, - u32 cluster) +u64 ocfs2_which_cluster_group(struct inode *inode, u32 cluster) { struct ocfs2_super *osb = OCFS2_SB(inode->i_sb); u32 group_no; @@ -1500,21 +1483,21 @@ static inline void ocfs2_block_to_cluster_group(struct inode *inode, * contig. allocation, set to '1' to indicate we can deal with extents * of any size. */ -int ocfs2_claim_clusters(struct ocfs2_super *osb, - handle_t *handle, - struct ocfs2_alloc_context *ac, - u32 min_clusters, - u32 *cluster_start, - u32 *num_clusters) +int __ocfs2_claim_clusters(struct ocfs2_super *osb, + handle_t *handle, + struct ocfs2_alloc_context *ac, + u32 min_clusters, + u32 max_clusters, + u32 *cluster_start, + u32 *num_clusters) { int status; - unsigned int bits_wanted = ac->ac_bits_wanted - ac->ac_bits_given; + unsigned int bits_wanted = max_clusters; u64 bg_blkno = 0; u16 bg_bit_off; mlog_entry_void(); - BUG_ON(!ac); BUG_ON(ac->ac_bits_given >= ac->ac_bits_wanted); BUG_ON(ac->ac_which != OCFS2_AC_USE_LOCAL @@ -1533,8 +1516,9 @@ int ocfs2_claim_clusters(struct ocfs2_super *osb, if (min_clusters > (osb->bitmap_cpg - 1)) { /* The only paths asking for contiguousness * should know about this already. */ - mlog(ML_ERROR, "minimum allocation requested exceeds " - "group bitmap size!"); + mlog(ML_ERROR, "minimum allocation requested %u exceeds " + "group bitmap size %u!\n", min_clusters, + osb->bitmap_cpg); status = -ENOSPC; goto bail; } @@ -1571,6 +1555,19 @@ bail: return status; } +int ocfs2_claim_clusters(struct ocfs2_super *osb, + handle_t *handle, + struct ocfs2_alloc_context *ac, + u32 min_clusters, + u32 *cluster_start, + u32 *num_clusters) +{ + unsigned int bits_wanted = ac->ac_bits_wanted - ac->ac_bits_given; + + return __ocfs2_claim_clusters(osb, handle, ac, min_clusters, + bits_wanted, cluster_start, num_clusters); +} + static inline int ocfs2_block_group_clear_bits(handle_t *handle, struct inode *alloc_inode, struct ocfs2_group_desc *bg, @@ -1626,12 +1623,12 @@ bail: /* * expects the suballoc inode to already be locked. */ -static int ocfs2_free_suballoc_bits(handle_t *handle, - struct inode *alloc_inode, - struct buffer_head *alloc_bh, - unsigned int start_bit, - u64 bg_blkno, - unsigned int count) +int ocfs2_free_suballoc_bits(handle_t *handle, + struct inode *alloc_inode, + struct buffer_head *alloc_bh, + unsigned int start_bit, + u64 bg_blkno, + unsigned int count) { int status = 0; u32 tmp_used; @@ -1703,13 +1700,6 @@ bail: return status; } -static inline u64 ocfs2_which_suballoc_group(u64 block, unsigned int bit) -{ - u64 group = block - (u64) bit; - - return group; -} - int ocfs2_free_dinode(handle_t *handle, struct inode *inode_alloc_inode, struct buffer_head *inode_alloc_bh, @@ -1723,19 +1713,6 @@ int ocfs2_free_dinode(handle_t *handle, inode_alloc_bh, bit, bg_blkno, 1); } -int ocfs2_free_extent_block(handle_t *handle, - struct inode *eb_alloc_inode, - struct buffer_head *eb_alloc_bh, - struct ocfs2_extent_block *eb) -{ - u64 blk = le64_to_cpu(eb->h_blkno); - u16 bit = le16_to_cpu(eb->h_suballoc_bit); - u64 bg_blkno = ocfs2_which_suballoc_group(blk, bit); - - return ocfs2_free_suballoc_bits(handle, eb_alloc_inode, eb_alloc_bh, - bit, bg_blkno, 1); -} - int ocfs2_free_clusters(handle_t *handle, struct inode *bitmap_inode, struct buffer_head *bitmap_bh,