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authorAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>2008-04-29 08:11:12 -0400
committerTheodore Ts'o <tytso@mit.edu>2008-04-29 08:11:12 -0400
commite65187e6d0d541f992e684f88a7e090dcff1aac8 (patch)
treebf8af79f6f78596b8ca0f9affe94586f3a74f7eb
parent95c3889cb88ca4833096553c12cde9e7eb792f4c (diff)
ext4: Enable extent format for symlinks.
This patch enables extent-formatted normal symlinks. Using extents format allows a symlink to refer to a block number larger than 2^32 on large filesystems. We still don't enable extent format for fast symlinks, which are contained in the inode itself. Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Mingming Cao <cmm@us.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
-rw-r--r--fs/ext4/ialloc.c4
-rw-r--r--fs/ext4/namei.c2
2 files changed, 4 insertions, 2 deletions
diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c
index 486e46a3918d..cb14646117f0 100644
--- a/fs/ext4/ialloc.c
+++ b/fs/ext4/ialloc.c
@@ -750,8 +750,8 @@ got:
goto fail_free_drop;
}
if (test_opt(sb, EXTENTS)) {
- /* set extent flag only for directory and file */
- if (S_ISDIR(mode) || S_ISREG(mode)) {
+ /* set extent flag only for diretory, file and normal symlink*/
+ if (S_ISDIR(mode) || S_ISREG(mode) || S_ISLNK(mode)) {
EXT4_I(inode)->i_flags |= EXT4_EXTENTS_FL;
ext4_ext_tree_init(handle, inode);
err = ext4_update_incompat_feature(handle, sb,
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index 28aa2ed4297e..68611945687d 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -2217,6 +2217,8 @@ retry:
goto out_stop;
}
} else {
+ /* clear the extent format for fast symlink */
+ EXT4_I(inode)->i_flags &= ~EXT4_EXTENTS_FL;
inode->i_op = &ext4_fast_symlink_inode_operations;
memcpy((char*)&EXT4_I(inode)->i_data,symname,l);
inode->i_size = l-1;