The patch titled
ext2: fsid for statvfs
has been removed from the -mm tree. Its filename was
ext2-fsid-for-statvfs.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
Subject: ext2: fsid for statvfs
From: Pekka Enberg <penberg@xxxxxxxxxxxxxx>
Update ext2_statfs to return an FSID that is a 64 bit XOR of the 128 bit
filesystem UUID as suggested by Andreas Dilger. See the following Bugzilla
entry for details:
http://bugzilla.kernel.org/show_bug.cgi?id=136
Cc: Andreas Dilger <adilger@xxxxxxxxxxxxx>
Cc: Stephen Tweedie <sct@xxxxxxxxxx>
Signed-off-by: Pekka Enberg <penberg@xxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
fs/ext2/super.c | 18 ++++++++++++------
1 file changed, 12 insertions(+), 6 deletions(-)
diff -puN fs/ext2/super.c~ext2-fsid-for-statvfs fs/ext2/super.c
--- a/fs/ext2/super.c~ext2-fsid-for-statvfs
+++ a/fs/ext2/super.c
@@ -1090,8 +1090,10 @@ static int ext2_statfs (struct dentry *
{
struct super_block *sb = dentry->d_sb;
struct ext2_sb_info *sbi = EXT2_SB(sb);
+ struct ext2_super_block *es = sbi->s_es;
unsigned long overhead;
int i;
+ u64 fsid;
if (test_opt (sb, MINIX_DF))
overhead = 0;
@@ -1104,7 +1106,7 @@ static int ext2_statfs (struct dentry *
* All of the blocks before first_data_block are
* overhead
*/
- overhead = le32_to_cpu(sbi->s_es->s_first_data_block);
+ overhead = le32_to_cpu(es->s_first_data_block);
/*
* Add the overhead attributed to the superblock and
@@ -1125,14 +1127,18 @@ static int ext2_statfs (struct dentry *
buf->f_type = EXT2_SUPER_MAGIC;
buf->f_bsize = sb->s_blocksize;
- buf->f_blocks = le32_to_cpu(sbi->s_es->s_blocks_count) - overhead;
+ buf->f_blocks = le32_to_cpu(es->s_blocks_count) - overhead;
buf->f_bfree = ext2_count_free_blocks(sb);
- buf->f_bavail = buf->f_bfree - le32_to_cpu(sbi->s_es->s_r_blocks_count);
- if (buf->f_bfree < le32_to_cpu(sbi->s_es->s_r_blocks_count))
+ buf->f_bavail = buf->f_bfree - le32_to_cpu(es->s_r_blocks_count);
+ if (buf->f_bfree < le32_to_cpu(es->s_r_blocks_count))
buf->f_bavail = 0;
- buf->f_files = le32_to_cpu(sbi->s_es->s_inodes_count);
- buf->f_ffree = ext2_count_free_inodes (sb);
+ buf->f_files = le32_to_cpu(es->s_inodes_count);
+ buf->f_ffree = ext2_count_free_inodes(sb);
buf->f_namelen = EXT2_NAME_LEN;
+ fsid = le64_to_cpup((void *)es->s_uuid) ^
+ le64_to_cpup((void *)es->s_uuid + sizeof(u64));
+ buf->f_fsid.val[0] = fsid & 0xFFFFFFFFUL;
+ buf->f_fsid.val[1] = (fsid >> 32) & 0xFFFFFFFFUL;
return 0;
}
_
Patches currently in -mm which might be from penberg@xxxxxxxxxxxxxx are
origin.patch
fault-injection-capability-for-kmalloc.patch
slab-leaks3-default-y.patch
-
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