From 564e12b1157215171e7f3af5b70611ec7154327c Mon Sep 17 00:00:00 2001 From: Bob Peterson Date: Mon, 21 Nov 2011 13:36:17 -0500 Subject: GFS2: decouple quota allocations from block allocations This patch separates the code pertaining to allocations into two parts: quota-related information and block reservations. This patch also moves all the block reservation structure allocations to function gfs2_inplace_reserve to simplify the code, and moves the frees to function gfs2_inplace_release. Signed-off-by: Bob Peterson Signed-off-by: Steven Whitehouse --- fs/gfs2/file.c | 25 +++++++++++-------------- 1 file changed, 11 insertions(+), 14 deletions(-) (limited to 'fs/gfs2/file.c') diff --git a/fs/gfs2/file.c b/fs/gfs2/file.c index 9b6c6ac351a8..42ceb23651e5 100644 --- a/fs/gfs2/file.c +++ b/fs/gfs2/file.c @@ -365,7 +365,7 @@ static int gfs2_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf) u64 pos = page->index << PAGE_CACHE_SHIFT; unsigned int data_blocks, ind_blocks, rblocks; struct gfs2_holder gh; - struct gfs2_alloc *al; + struct gfs2_qadata *qa; loff_t size; int ret; @@ -393,16 +393,15 @@ static int gfs2_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf) } ret = -ENOMEM; - al = gfs2_alloc_get(ip); - if (al == NULL) + qa = gfs2_qadata_get(ip); + if (qa == NULL) goto out_unlock; ret = gfs2_quota_lock_check(ip); if (ret) goto out_alloc_put; gfs2_write_calc_reserv(ip, PAGE_CACHE_SIZE, &data_blocks, &ind_blocks); - al->al_requested = data_blocks + ind_blocks; - ret = gfs2_inplace_reserve(ip); + ret = gfs2_inplace_reserve(ip, data_blocks + ind_blocks); if (ret) goto out_quota_unlock; @@ -448,7 +447,7 @@ out_trans_fail: out_quota_unlock: gfs2_quota_unlock(ip); out_alloc_put: - gfs2_alloc_put(ip); + gfs2_qadata_put(ip); out_unlock: gfs2_glock_dq(&gh); out: @@ -750,7 +749,7 @@ static long gfs2_fallocate(struct file *file, int mode, loff_t offset, struct gfs2_inode *ip = GFS2_I(inode); unsigned int data_blocks = 0, ind_blocks = 0, rblocks; loff_t bytes, max_bytes; - struct gfs2_alloc *al; + struct gfs2_qadata *qa; int error; const loff_t pos = offset; const loff_t count = len; @@ -784,8 +783,8 @@ static long gfs2_fallocate(struct file *file, int mode, loff_t offset, while (len > 0) { if (len < bytes) bytes = len; - al = gfs2_alloc_get(ip); - if (!al) { + qa = gfs2_qadata_get(ip); + if (!qa) { error = -ENOMEM; goto out_unlock; } @@ -797,8 +796,7 @@ static long gfs2_fallocate(struct file *file, int mode, loff_t offset, retry: gfs2_write_calc_reserv(ip, bytes, &data_blocks, &ind_blocks); - al->al_requested = data_blocks + ind_blocks; - error = gfs2_inplace_reserve(ip); + error = gfs2_inplace_reserve(ip, data_blocks + ind_blocks); if (error) { if (error == -ENOSPC && bytes > sdp->sd_sb.sb_bsize) { bytes >>= 1; @@ -812,7 +810,6 @@ retry: max_bytes = bytes; calc_max_reserv(ip, (len > max_chunk_size)? max_chunk_size: len, &max_bytes, &data_blocks, &ind_blocks); - al->al_requested = data_blocks + ind_blocks; rblocks = RES_DINODE + ind_blocks + RES_STATFS + RES_QUOTA + RES_RG_HDR + gfs2_rg_blocks(ip); @@ -834,7 +831,7 @@ retry: offset += max_bytes; gfs2_inplace_release(ip); gfs2_quota_unlock(ip); - gfs2_alloc_put(ip); + gfs2_qadata_put(ip); } if (error == 0) @@ -846,7 +843,7 @@ out_trans_fail: out_qunlock: gfs2_quota_unlock(ip); out_alloc_put: - gfs2_alloc_put(ip); + gfs2_qadata_put(ip); out_unlock: gfs2_glock_dq(&ip->i_gh); out_uninit: -- cgit v1.2.1