diff options
| -rw-r--r-- | fs/gfs2/inode.c | 38 |
1 files changed, 26 insertions, 12 deletions
diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c index 9ac8f13a8c37..fa4624feef0f 100644 --- a/fs/gfs2/inode.c +++ b/fs/gfs2/inode.c @@ -469,6 +469,28 @@ static void init_dinode(struct gfs2_inode *dip, struct gfs2_inode *ip, brelse(dibh); } +/** + * gfs2_trans_da_blocks - Calculate number of blocks to link inode + * @dip: The directory we are linking into + * @da: The dir add information + * @nr_inodes: The number of inodes involved + * + * This calculate the number of blocks we need to reserve in a + * transaction to link @nr_inodes into a directory. In most cases + * @nr_inodes will be 2 (the directory plus the inode being linked in) + * but in case of rename, 4 may be required. + * + * Returns: Number of blocks + */ + +static unsigned gfs2_trans_da_blks(const struct gfs2_inode *dip, + const struct gfs2_diradd *da, + unsigned nr_inodes) +{ + return da->nr_blocks + gfs2_rg_blocks(dip, da->nr_blocks) + + (nr_inodes * RES_DINODE) + RES_QUOTA + RES_STATFS; +} + static int link_dinode(struct gfs2_inode *dip, const struct qstr *name, struct gfs2_inode *ip, struct gfs2_diradd *da) { @@ -485,10 +507,7 @@ static int link_dinode(struct gfs2_inode *dip, const struct qstr *name, if (error) goto fail_quota_locks; - error = gfs2_trans_begin(sdp, da->nr_blocks + - gfs2_rg_blocks(dip, da->nr_blocks) + - 2 * RES_DINODE + - RES_STATFS + RES_QUOTA, 0); + error = gfs2_trans_begin(sdp, gfs2_trans_da_blks(dip, da, 2), 0); if (error) goto fail_ipreserv; } else { @@ -886,10 +905,7 @@ static int gfs2_link(struct dentry *old_dentry, struct inode *dir, if (error) goto out_gunlock_q; - error = gfs2_trans_begin(sdp, da.nr_blocks + - gfs2_rg_blocks(dip, da.nr_blocks) + - 2 * RES_DINODE + RES_STATFS + - RES_QUOTA, 0); + error = gfs2_trans_begin(sdp, gfs2_trans_da_blks(dip, &da, 2), 0); if (error) goto out_ipres; } else { @@ -1403,10 +1419,8 @@ static int gfs2_rename(struct inode *odir, struct dentry *odentry, if (error) goto out_gunlock_q; - error = gfs2_trans_begin(sdp, da.nr_blocks + - gfs2_rg_blocks(ndip, da.nr_blocks) + - 4 * RES_DINODE + 4 * RES_LEAF + - RES_STATFS + RES_QUOTA + 4, 0); + error = gfs2_trans_begin(sdp, gfs2_trans_da_blks(ndip, &da, 4) + + 4 * RES_LEAF + 4, 0); if (error) goto out_ipreserv; } else { |