diff options
| -rw-r--r-- | fs/gfs2/inode.c | 50 | ||||
| -rw-r--r-- | fs/gfs2/inode.h | 2 | ||||
| -rw-r--r-- | fs/gfs2/ops_inode.c | 25 |
3 files changed, 35 insertions, 42 deletions
diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c index bab338f6b61..58c2ce785fe 100644 --- a/fs/gfs2/inode.c +++ b/fs/gfs2/inode.c @@ -281,13 +281,13 @@ out: } /** - * gfs2_change_nlink_i - Change nlink count on inode + * gfs2_change_nlink - Change nlink count on inode * @ip: The GFS2 inode * @diff: The change in the nlink count required * * Returns: errno */ -int gfs2_change_nlink_i(struct gfs2_inode *ip, int diff) +int gfs2_change_nlink(struct gfs2_inode *ip, int diff) { struct buffer_head *dibh; u32 nlink; @@ -320,40 +320,52 @@ int gfs2_change_nlink_i(struct gfs2_inode *ip, int diff) brelse(dibh); mark_inode_dirty(&ip->i_inode); + if (ip->i_inode.i_nlink == 0) + error = gfs2_change_nlink_i(ip); + return error; } -int gfs2_change_nlink(struct gfs2_inode *ip, int diff) +int gfs2_change_nlink_i(struct gfs2_inode *ip) { struct gfs2_sbd *sdp = ip->i_inode.i_sb->s_fs_info; - int error; - - /* update the nlink */ - error = gfs2_change_nlink_i(ip, diff); - if (error) - return error; - - /* return meta data block back to rg */ - if (ip->i_inode.i_nlink == 0) { - struct gfs2_rgrpd *rgd; - struct gfs2_holder ri_gh, rg_gh; + struct gfs2_inode *rindex = GFS2_I(sdp->sd_rindex); + struct gfs2_glock *ri_gl = rindex->i_gl; + struct gfs2_rgrpd *rgd; + struct gfs2_holder ri_gh, rg_gh; + int existing, error; + /* if we come from rename path, we could have the lock already */ + existing = gfs2_glock_is_locked_by_me(ri_gl); + if (!existing) { error = gfs2_rindex_hold(sdp, &ri_gh); if (error) goto out; - error = -EIO; - rgd = gfs2_blk2rgrpd(sdp, ip->i_num.no_addr); - if (!rgd) - goto out_norgrp; + } + + /* find the matching rgd */ + error = -EIO; + rgd = gfs2_blk2rgrpd(sdp, ip->i_num.no_addr); + if (!rgd) + goto out_norgrp; + + /* + * Eventually we may want to move rgd(s) to a linked list + * and piggyback the free logic into one of gfs2 daemons + * to gain some performance. + */ + if (!rgd->rd_gl || !gfs2_glock_is_locked_by_me(rgd->rd_gl)) { error = gfs2_glock_nq_init(rgd->rd_gl, LM_ST_EXCLUSIVE, 0, &rg_gh); if (error) goto out_norgrp; gfs2_unlink_di(&ip->i_inode); /* mark inode unlinked */ gfs2_glock_dq_uninit(&rg_gh); + } + out_norgrp: + if (!existing) gfs2_glock_dq_uninit(&ri_gh); - } out: return error; } diff --git a/fs/gfs2/inode.h b/fs/gfs2/inode.h index 85c67cb568d..cee281b5326 100644 --- a/fs/gfs2/inode.h +++ b/fs/gfs2/inode.h @@ -40,7 +40,7 @@ int gfs2_inode_refresh(struct gfs2_inode *ip); int gfs2_dinode_dealloc(struct gfs2_inode *inode); int gfs2_change_nlink(struct gfs2_inode *ip, int diff); -int gfs2_change_nlink_i(struct gfs2_inode *ip, int diff); +int gfs2_change_nlink_i(struct gfs2_inode *ip); struct inode *gfs2_lookupi(struct inode *dir, const struct qstr *name, int is_root, struct nameidata *nd); struct inode *gfs2_createi(struct gfs2_holder *ghs, const struct qstr *name, diff --git a/fs/gfs2/ops_inode.c b/fs/gfs2/ops_inode.c index 919e8947e71..b2a12f44f59 100644 --- a/fs/gfs2/ops_inode.c +++ b/fs/gfs2/ops_inode.c @@ -553,7 +553,6 @@ static int gfs2_rename(struct inode *odir, struct dentry *odentry, int alloc_required; unsigned int x; int error; - struct gfs2_rgrpd *rgd; if (ndentry->d_inode) { nip = GFS2_I(ndentry->d_inode); @@ -685,12 +684,12 @@ static int gfs2_rename(struct inode *odir, struct dentry *odentry, error = gfs2_trans_begin(sdp, sdp->sd_max_dirres + al->al_rgd->rd_ri.ri_length + 4 * RES_DINODE + 4 * RES_LEAF + - RES_STATFS + RES_QUOTA + 1, 0); + RES_STATFS + RES_QUOTA + 4, 0); if (error) goto out_ipreserv; } else { error = gfs2_trans_begin(sdp, 4 * RES_DINODE + - 5 * RES_LEAF + 1, 0); + 5 * RES_LEAF + 4, 0); if (error) goto out_gunlock; } @@ -704,25 +703,7 @@ static int gfs2_rename(struct inode *odir, struct dentry *odentry, error = gfs2_dir_del(ndip, &ndentry->d_name); if (error) goto out_end_trans; - error = gfs2_change_nlink_i(nip, -1); - if ((!error) && (nip->i_inode.i_nlink == 0)) { - error = -EIO; - rgd = gfs2_blk2rgrpd(sdp, nip->i_num.no_addr); - if (rgd) { - struct gfs2_holder nlink_rg_gh; - if (rgd != nip->i_alloc.al_rgd) - error = gfs2_glock_nq_init( - rgd->rd_gl, LM_ST_EXCLUSIVE, - 0, &nlink_rg_gh); - else - error = 0; - if (!error) { - gfs2_unlink_di(&nip->i_inode); - if (rgd != nip->i_alloc.al_rgd) - gfs2_glock_dq_uninit(&nlink_rg_gh); - } - } - } + error = gfs2_change_nlink(nip, -1); } if (error) goto out_end_trans; |