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author | Chris Mason <chris.mason@oracle.com> | 2011-06-03 13:36:29 (GMT) |
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committer | Chris Mason <chris.mason@oracle.com> | 2011-06-04 12:03:47 (GMT) |
commit | 4b9465cb9e3859186eefa1ca3b990a5849386320 (patch) | |
tree | 8fc06452fb75e52f6c1c2e2253c2ff6700e622fd /fs/btrfs/free-space-cache.c | |
parent | e7786c3ae517b2c433edc91714e86be770e9f1ce (diff) | |
download | linux-fsl-qoriq-4b9465cb9e3859186eefa1ca3b990a5849386320.tar.xz |
Btrfs: add mount -o inode_cache
This makes the inode map cache default to off until we
fix the overflow problem when the free space crcs don't fit
inside a single page.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/free-space-cache.c')
-rw-r--r-- | fs/btrfs/free-space-cache.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c index 1cb7239..bffa5c4 100644 --- a/fs/btrfs/free-space-cache.c +++ b/fs/btrfs/free-space-cache.c @@ -2536,6 +2536,9 @@ int load_free_ino_cache(struct btrfs_fs_info *fs_info, struct btrfs_root *root) int ret = 0; u64 root_gen = btrfs_root_generation(&root->root_item); + if (!btrfs_test_opt(root, INODE_MAP_CACHE)) + return 0; + /* * If we're unmounting then just return, since this does a search on the * normal root and not the commit root and we could deadlock. @@ -2575,6 +2578,9 @@ int btrfs_write_out_ino_cache(struct btrfs_root *root, struct inode *inode; int ret; + if (!btrfs_test_opt(root, INODE_MAP_CACHE)) + return 0; + inode = lookup_free_ino_inode(root, path); if (IS_ERR(inode)) return 0; |