From: Aneesh Kumar K.V Date: Tue, 29 Apr 2008 12:11:12 +0000 (-0400) Subject: ext4: Enable extent format for symlinks. X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e65187e6d0d541f992e684f88a7e090dcff1aac8;p=linux-2.6 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 Signed-off-by: Mingming Cao Signed-off-by: "Theodore Ts'o" --- diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c index 486e46a391..cb14646117 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 28aa2ed429..6861194568 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;