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| author | Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> | 2010-05-03 21:00:48 +0900 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-05-26 14:29:21 -0700 |
| commit | 7823f8d63003bbb64f30d22929eae50742285b65 (patch) | |
| tree | 681aa32aa12a9eaa62908198ce39f86d8a9fdcb5 /fs | |
| parent | 734c542a8aa9d7d49ffed09e671972851f25df5e (diff) | |
| download | lwn-7823f8d63003bbb64f30d22929eae50742285b65.tar.gz lwn-7823f8d63003bbb64f30d22929eae50742285b65.zip | |
nilfs2: fix sync silent failure
commit 973bec34bfc1bc2465646181653d67f767d418c8 upstream.
As of 32a88aa1, __sync_filesystem() will return 0 if s_bdi is not set.
And nilfs does not set s_bdi anywhere. I noticed this problem by the
warning introduced by the recent commit 5129a469 ("Catch filesystem
lacking s_bdi").
WARNING: at fs/super.c:959 vfs_kern_mount+0xc5/0x14e()
Hardware name: PowerEdge 2850
Modules linked in: nilfs2 loop tpm_tis tpm tpm_bios video shpchp pci_hotplug output dcdbas
Pid: 3773, comm: mount.nilfs2 Not tainted 2.6.34-rc6-debug #38
Call Trace:
[<c1028422>] warn_slowpath_common+0x60/0x90
[<c102845f>] warn_slowpath_null+0xd/0x10
[<c1095936>] vfs_kern_mount+0xc5/0x14e
[<c1095a03>] do_kern_mount+0x32/0xbd
[<c10a811e>] do_mount+0x671/0x6d0
[<c1073794>] ? __get_free_pages+0x1f/0x21
[<c10a684f>] ? copy_mount_options+0x2b/0xe2
[<c107b634>] ? strndup_user+0x48/0x67
[<c10a81de>] sys_mount+0x61/0x8f
[<c100280c>] sysenter_do_call+0x12/0x32
This ensures to set s_bdi for nilfs and fixes the sync silent failure.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Acked-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/nilfs2/super.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/nilfs2/super.c b/fs/nilfs2/super.c index 644e66727dd0..63e7b108ff83 100644 --- a/fs/nilfs2/super.c +++ b/fs/nilfs2/super.c @@ -781,6 +781,7 @@ nilfs_fill_super(struct super_block *sb, void *data, int silent, sb->s_export_op = &nilfs_export_ops; sb->s_root = NULL; sb->s_time_gran = 1; + sb->s_bdi = nilfs->ns_bdi; if (!nilfs_loaded(nilfs)) { err = load_nilfs(nilfs, sbi); |