diff options
| author | Roland McGrath <roland@gnu.org> | 1999-08-23 04:01:53 +0000 |
|---|---|---|
| committer | Roland McGrath <roland@gnu.org> | 1999-08-23 04:01:53 +0000 |
| commit | fafaeb9b5d0b835b4b17a7d5f347be60e2ab5e5a (patch) | |
| tree | a4a3b766e35cbb6ede6ade79bddd14fee0b4b84b | |
| parent | a6180efe4aef92ab609927e3a4a33dfb801eb2e0 (diff) | |
1999-08-23 Roland McGrath <roland@baalperazim.frob.com>
* balloc.c (ext2_new_block): Take new arg PREALLOC_GOAL.
Use that instead of hard-coded 8 as maximum of blocks to preallocate.
Also test that instead of PREALLOC_COUNT to decide whether to
try any preallocation at all.
* getblk.c (ext2_alloc_block): Pass new arg to ext2_new_block.
Use EXT2_DEFAULT_PREALLOC_BLOCKS as default (replaces hard-coded 8);
For a regular file, use SBLOCK->s_prealloc_blocks before default.
For a directory, use SBLOCK->s_dir_prealloc_blocks if the
EXT2_FEATURE_COMPAT_DIR_PREALLOC flag is set, otherwise zero.
* inode.c (diskfs_set_translator): Pass new arg (zero).
| -rw-r--r-- | ext2fs/getblk.c | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/ext2fs/getblk.c b/ext2fs/getblk.c index 1ac597e5..5dea8f30 100644 --- a/ext2fs/getblk.c +++ b/ext2fs/getblk.c @@ -86,13 +86,17 @@ ext2_alloc_block (struct node *node, block_t goal, int zero) ext2_debug ("preallocation miss (%lu/%lu)", alloc_hits, ++alloc_attempts); ext2_discard_prealloc (node); - if (S_ISREG (node->dn_stat.st_mode)) - result = - ext2_new_block (goal, - &node->dn->info.i_prealloc_count, - &node->dn->info.i_prealloc_block); - else - result = ext2_new_block (goal, 0, 0); + result = ext2_new_block + (goal, + S_ISREG (node->dn_stat.st_mode) + ? (sblock->s_prealloc_blocks ?: EXT2_DEFAULT_PREALLOC_BLOCKS) + : (S_ISDIR (node->dn_stat.st_mode) + && EXT2_HAS_COMPAT_FEATURE(sblock, + EXT2_FEATURE_COMPAT_DIR_PREALLOC)) + ? sblock->s_prealloc_dir_blocks + : 0, + &node->dn->info.i_prealloc_count, + &node->dn->info.i_prealloc_block); } #else result = ext2_new_block (goal, 0, 0); |