diff options
| author | Christoph Hellwig <hch@sgi.com> | 2006-01-11 15:27:18 +1100 |
|---|---|---|
| committer | Nathan Scott <nathans@sgi.com> | 2006-01-11 15:27:18 +1100 |
| commit | 4ef19dddbaf2f24e492c18112fd8a04ce116daca (patch) | |
| tree | 857a14290f682a9a1bc71d9a6b0e20f095c5cc91 /fs/xfs/xfs_vfsops.c | |
| parent | d3a9b1f9da4ee3e6d284148412097621b1c9e575 (diff) | |
| download | lwn-4ef19dddbaf2f24e492c18112fd8a04ce116daca.tar.gz lwn-4ef19dddbaf2f24e492c18112fd8a04ce116daca.zip | |
[XFS] enable write barriers by default
SGI-PV: 912426
SGI-Modid: xfs-linux-melb:xfs-kern:201981a
Signed-off-by: Christoph Hellwig <hch@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
Diffstat (limited to 'fs/xfs/xfs_vfsops.c')
| -rw-r--r-- | fs/xfs/xfs_vfsops.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/fs/xfs/xfs_vfsops.c b/fs/xfs/xfs_vfsops.c index 7bdbd991ab1c..3406399e25b3 100644 --- a/fs/xfs/xfs_vfsops.c +++ b/fs/xfs/xfs_vfsops.c @@ -312,6 +312,8 @@ xfs_start_flags( mp->m_flags |= XFS_MOUNT_NOUUID; if (ap->flags & XFSMNT_BARRIER) mp->m_flags |= XFS_MOUNT_BARRIER; + else + mp->m_flags &= ~XFS_MOUNT_BARRIER; return 0; } @@ -655,6 +657,11 @@ xfs_mntupdate( else mp->m_flags &= ~XFS_MOUNT_NOATIME; + if (args->flags & XFSMNT_BARRIER) + mp->m_flags |= XFS_MOUNT_BARRIER; + else + mp->m_flags &= ~XFS_MOUNT_BARRIER; + if ((vfsp->vfs_flag & VFS_RDONLY) && !(*flags & MS_RDONLY)) { vfsp->vfs_flag &= ~VFS_RDONLY; @@ -1634,6 +1641,7 @@ xfs_vget( #define MNTOPT_NORECOVERY "norecovery" /* don't run XFS recovery */ #define MNTOPT_BARRIER "barrier" /* use writer barriers for log write and * unwritten extent conversion */ +#define MNTOPT_NOBARRIER "nobarrier" /* .. disable */ #define MNTOPT_OSYNCISOSYNC "osyncisosync" /* o_sync is REALLY o_sync */ #define MNTOPT_64BITINODE "inode64" /* inodes can be allocated anywhere */ #define MNTOPT_IKEEP "ikeep" /* do not free empty inode clusters */ @@ -1681,6 +1689,7 @@ xfs_parseargs( args->flags2 |= XFSMNT2_COMPAT_IOSIZE; args->flags |= XFSMNT_COMPAT_ATTR; + args->flags |= XFSMNT_BARRIER; #if 0 /* XXX: off by default, until some remaining issues ironed out */ args->flags |= XFSMNT_IDELETE; /* default to on */ @@ -1806,6 +1815,8 @@ xfs_parseargs( args->flags |= XFSMNT_NOUUID; } else if (!strcmp(this_char, MNTOPT_BARRIER)) { args->flags |= XFSMNT_BARRIER; + } else if (!strcmp(this_char, MNTOPT_NOBARRIER)) { + args->flags &= ~XFSMNT_BARRIER; } else if (!strcmp(this_char, MNTOPT_IKEEP)) { args->flags &= ~XFSMNT_IDELETE; } else if (!strcmp(this_char, MNTOPT_NOIKEEP)) { @@ -1892,7 +1903,6 @@ xfs_showargs( { XFS_MOUNT_NOUUID, "," MNTOPT_NOUUID }, { XFS_MOUNT_NORECOVERY, "," MNTOPT_NORECOVERY }, { XFS_MOUNT_OSYNCISOSYNC, "," MNTOPT_OSYNCISOSYNC }, - { XFS_MOUNT_BARRIER, "," MNTOPT_BARRIER }, { XFS_MOUNT_IDELETE, "," MNTOPT_NOIKEEP }, { 0, NULL } }; @@ -1941,6 +1951,9 @@ xfs_showargs( if (!(vfsp->vfs_flag & VFS_32BITINODES)) seq_printf(m, "," MNTOPT_64BITINODE); + if (!(vfsp->vfs_flag & XFS_MOUNT_BARRIER)) + seq_printf(m, "," MNTOPT_NOBARRIER); + if (vfsp->vfs_flag & VFS_GRPID) seq_printf(m, "," MNTOPT_GRPID); |