From 20b95bf2c4c5c28e093aa42699e67829b6cd7fd0 Mon Sep 17 00:00:00 2001 From: Abhijith Das Date: Thu, 6 Mar 2008 17:43:52 -0600 Subject: [GFS2] gfs2_adjust_quota has broken unstuffing code This patch combines the 2 patches in bug 434736 to correct the lock ordering in the unstuffing of the quota inode in gfs2_adjust_quota and adjusting the number of revokes in gfs2_write_jdata_pagevec Signed-off-by: Abhijith Das Signed-off-by: Steven Whitehouse --- fs/gfs2/quota.c | 71 ++++++++++++++++++++++++--------------------------------- 1 file changed, 30 insertions(+), 41 deletions(-) (limited to 'fs/gfs2/quota.c') diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c index 636bccf..c71f781 100644 --- a/fs/gfs2/quota.c +++ b/fs/gfs2/quota.c @@ -616,17 +616,9 @@ static int gfs2_adjust_quota(struct gfs2_inode *ip, loff_t loc, s64 value; int err = -EIO; - if (gfs2_is_stuffed(ip)) { - struct gfs2_alloc *al = gfs2_alloc_get(ip); - if (!al) - return -ENOMEM; - /* just request 1 blk */ - al->al_requested = 1; - gfs2_inplace_reserve(ip); + if (gfs2_is_stuffed(ip)) gfs2_unstuff_dinode(ip, NULL); - gfs2_inplace_release(ip); - gfs2_alloc_put(ip); - } + page = grab_cache_page(mapping, index); if (!page) return -ENOMEM; @@ -691,7 +683,7 @@ static int do_sync(unsigned int num_qd, struct gfs2_quota_data **qda) unsigned int qx, x; struct gfs2_quota_data *qd; loff_t offset; - unsigned int nalloc = 0; + unsigned int nalloc = 0, blocks; struct gfs2_alloc *al = NULL; int error; @@ -728,34 +720,33 @@ static int do_sync(unsigned int num_qd, struct gfs2_quota_data **qda) nalloc++; } - if (nalloc) { - al = gfs2_alloc_get(ip); - if (!al) { - error = -ENOMEM; - goto out_gunlock; - } + al = gfs2_alloc_get(ip); + if (!al) { + error = -ENOMEM; + goto out_gunlock; + } + /* + * 1 blk for unstuffing inode if stuffed. We add this extra + * block to the reservation unconditionally. If the inode + * doesn't need unstuffing, the block will be released to the + * rgrp since it won't be allocated during the transaction + */ + al->al_requested = 1; + /* +1 in the end for block requested above for unstuffing */ + blocks = num_qd * data_blocks + RES_DINODE + num_qd + 1; - al->al_requested = nalloc * (data_blocks + ind_blocks); + if (nalloc) + al->al_requested += nalloc * (data_blocks + ind_blocks); + error = gfs2_inplace_reserve(ip); + if (error) + goto out_alloc; - error = gfs2_inplace_reserve(ip); - if (error) - goto out_alloc; - - error = gfs2_trans_begin(sdp, - al->al_rgd->rd_length + - num_qd * data_blocks + - nalloc * ind_blocks + - RES_DINODE + num_qd + - RES_STATFS, 0); - if (error) - goto out_ipres; - } else { - error = gfs2_trans_begin(sdp, - num_qd * data_blocks + - RES_DINODE + num_qd, 0); - if (error) - goto out_gunlock; - } + if (nalloc) + blocks += al->al_rgd->rd_length + nalloc * ind_blocks + RES_STATFS; + + error = gfs2_trans_begin(sdp, blocks, 0); + if (error) + goto out_ipres; for (x = 0; x < num_qd; x++) { qd = qda[x]; @@ -774,11 +765,9 @@ static int do_sync(unsigned int num_qd, struct gfs2_quota_data **qda) out_end_trans: gfs2_trans_end(sdp); out_ipres: - if (nalloc) - gfs2_inplace_release(ip); + gfs2_inplace_release(ip); out_alloc: - if (nalloc) - gfs2_alloc_put(ip); + gfs2_alloc_put(ip); out_gunlock: gfs2_glock_dq_uninit(&i_gh); out: -- cgit v1.1