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authorLukas Czerner <lczerner@redhat.com>2011-08-16 12:08:06 -0400
committerJan Kara <jack@suse.cz>2011-08-17 05:42:19 -0400
commitfbc854027c91fa2813ae7f9de43cc0b5c1119f41 (patch)
tree36003e9919758ac0507034652d0832514728e421 /fs/ext3/ialloc.c
parent46130222df8567ffde773216044c7611a1e71d51 (diff)
ext3: remove deprecated oldalloc
For a long time now orlov is the default block allocator in the ext3. It performs better than the old one and no one seems to claim otherwise so we can safely drop it and make oldalloc and orlov mount option deprecated. Signed-off-by: Lukas Czerner <lczerner@redhat.com> Signed-off-by: Jan Kara <jack@suse.cz>
Diffstat (limited to 'fs/ext3/ialloc.c')
-rw-r--r--fs/ext3/ialloc.c45
1 files changed, 3 insertions, 42 deletions
diff --git a/fs/ext3/ialloc.c b/fs/ext3/ialloc.c
index bf09cbf938cc..635bd8ce6d59 100644
--- a/fs/ext3/ialloc.c
+++ b/fs/ext3/ialloc.c
@@ -178,42 +178,6 @@ error_return:
178} 178}
179 179
180/* 180/*
181 * There are two policies for allocating an inode. If the new inode is
182 * a directory, then a forward search is made for a block group with both
183 * free space and a low directory-to-inode ratio; if that fails, then of
184 * the groups with above-average free space, that group with the fewest
185 * directories already is chosen.
186 *
187 * For other inodes, search forward from the parent directory\'s block
188 * group to find a free inode.
189 */
190static int find_group_dir(struct super_block *sb, struct inode *parent)
191{
192 int ngroups = EXT3_SB(sb)->s_groups_count;
193 unsigned int freei, avefreei;
194 struct ext3_group_desc *desc, *best_desc = NULL;
195 int group, best_group = -1;
196
197 freei = percpu_counter_read_positive(&EXT3_SB(sb)->s_freeinodes_counter);
198 avefreei = freei / ngroups;
199
200 for (group = 0; group < ngroups; group++) {
201 desc = ext3_get_group_desc (sb, group, NULL);
202 if (!desc || !desc->bg_free_inodes_count)
203 continue;
204 if (le16_to_cpu(desc->bg_free_inodes_count) < avefreei)
205 continue;
206 if (!best_desc ||
207 (le16_to_cpu(desc->bg_free_blocks_count) >
208 le16_to_cpu(best_desc->bg_free_blocks_count))) {
209 best_group = group;
210 best_desc = desc;
211 }
212 }
213 return best_group;
214}
215
216/*
217 * Orlov's allocator for directories. 181 * Orlov's allocator for directories.
218 * 182 *
219 * We always try to spread first-level directories. 183 * We always try to spread first-level directories.
@@ -436,12 +400,9 @@ struct inode *ext3_new_inode(handle_t *handle, struct inode * dir,
436 400
437 sbi = EXT3_SB(sb); 401 sbi = EXT3_SB(sb);
438 es = sbi->s_es; 402 es = sbi->s_es;
439 if (S_ISDIR(mode)) { 403 if (S_ISDIR(mode))
440 if (test_opt (sb, OLDALLOC)) 404 group = find_group_orlov(sb, dir);
441 group = find_group_dir(sb, dir); 405 else
442 else
443 group = find_group_orlov(sb, dir);
444 } else
445 group = find_group_other(sb, dir); 406 group = find_group_other(sb, dir);
446 407
447 err = -ENOSPC; 408 err = -ENOSPC;