diff options
author | Christoph Hellwig <hch@infradead.org> | 2007-10-11 18:09:40 +1000 |
---|---|---|
committer | Lachlan McIlroy <lachlan@redback.melbourne.sgi.com> | 2008-02-07 16:53:27 +1100 |
commit | 4ca488eb45692520f745f96abc00ea4e268a87d4 (patch) | |
tree | 525662017ca7cfdc45b9d62f01e045d1da999e4a /fs/xfs/linux-2.6 | |
parent | c43f408795c3210c9f5c925e4a49dbb93d41bb57 (diff) | |
download | linux-4ca488eb45692520f745f96abc00ea4e268a87d4.tar.bz2 |
[XFS] Kill off xfs_statvfs.
We were already filling the Linux struct statfs anyway, and doing this
trivial task directly in xfs_fs_statfs makes the code quite a bit cleaner.
While I was at it I also moved copying attributes that don't change over
the lifetime of the filesystem outside the superblock lock.
xfs_fs_fill_super used to get the magic number and blocksize through
xfs_statvfs, but assigning them directly is a lot cleaner and will save
some stack space during mount.
SGI-PV: 971186
SGI-Modid: xfs-linux-melb:xfs-kern:29802a
Signed-off-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Tim Shimmin <tes@sgi.com>
Diffstat (limited to 'fs/xfs/linux-2.6')
-rw-r--r-- | fs/xfs/linux-2.6/xfs_linux.h | 4 | ||||
-rw-r--r-- | fs/xfs/linux-2.6/xfs_super.c | 51 |
2 files changed, 41 insertions, 14 deletions
diff --git a/fs/xfs/linux-2.6/xfs_linux.h b/fs/xfs/linux-2.6/xfs_linux.h index ec51ecd13877..9bf4f7e965c7 100644 --- a/fs/xfs/linux-2.6/xfs_linux.h +++ b/fs/xfs/linux-2.6/xfs_linux.h @@ -207,10 +207,6 @@ #define xfs_stack_trace() dump_stack() #define xfs_itruncate_data(ip, off) \ (-vmtruncate(vn_to_inode(XFS_ITOV(ip)), (off))) -#define xfs_statvfs_fsid(statp, mp) \ - ({ u64 id = huge_encode_dev((mp)->m_ddev_targp->bt_dev); \ - __kernel_fsid_t *fsid = &(statp)->f_fsid; \ - (fsid->val[0] = (u32)id, fsid->val[1] = (u32)(id >> 32)); }) /* Move the kernel do_div definition off to one side */ diff --git a/fs/xfs/linux-2.6/xfs_super.c b/fs/xfs/linux-2.6/xfs_super.c index 400ed2f20717..c0549737f7ea 100644 --- a/fs/xfs/linux-2.6/xfs_super.c +++ b/fs/xfs/linux-2.6/xfs_super.c @@ -681,8 +681,44 @@ xfs_fs_statfs( struct dentry *dentry, struct kstatfs *statp) { - return -xfs_statvfs(XFS_M(dentry->d_sb), statp, - vn_from_inode(dentry->d_inode)); + struct xfs_mount *mp = XFS_M(dentry->d_sb); + xfs_sb_t *sbp = &mp->m_sb; + __uint64_t fakeinos, id; + xfs_extlen_t lsize; + + statp->f_type = XFS_SB_MAGIC; + statp->f_namelen = MAXNAMELEN - 1; + + id = huge_encode_dev(mp->m_ddev_targp->bt_dev); + statp->f_fsid.val[0] = (u32)id; + statp->f_fsid.val[1] = (u32)(id >> 32); + + xfs_icsb_sync_counters_flags(mp, XFS_ICSB_LAZY_COUNT); + + spin_lock(&mp->m_sb_lock); + statp->f_bsize = sbp->sb_blocksize; + lsize = sbp->sb_logstart ? sbp->sb_logblocks : 0; + statp->f_blocks = sbp->sb_dblocks - lsize; + statp->f_bfree = statp->f_bavail = + sbp->sb_fdblocks - XFS_ALLOC_SET_ASIDE(mp); + fakeinos = statp->f_bfree << sbp->sb_inopblog; +#if XFS_BIG_INUMS + fakeinos += mp->m_inoadd; +#endif + statp->f_files = + MIN(sbp->sb_icount + fakeinos, (__uint64_t)XFS_MAXINUMBER); + if (mp->m_maxicount) +#if XFS_BIG_INUMS + if (!mp->m_inoadd) +#endif + statp->f_files = min_t(typeof(statp->f_files), + statp->f_files, + mp->m_maxicount); + statp->f_ffree = statp->f_files - (sbp->sb_icount - sbp->sb_ifree); + spin_unlock(&mp->m_sb_lock); + + XFS_QM_DQSTATVFS(XFS_I(dentry->d_inode), statp); + return 0; } STATIC int @@ -777,7 +813,6 @@ xfs_fs_fill_super( struct inode *rootvp; struct xfs_mount *mp = NULL; struct xfs_mount_args *args = xfs_args_allocate(sb, silent); - struct kstatfs statvfs; int error; mp = xfs_mount_init(); @@ -805,14 +840,10 @@ xfs_fs_fill_super( if (error) goto fail_vfsop; - error = xfs_statvfs(mp, &statvfs, NULL); - if (error) - goto fail_unmount; - sb->s_dirt = 1; - sb->s_magic = statvfs.f_type; - sb->s_blocksize = statvfs.f_bsize; - sb->s_blocksize_bits = ffs(statvfs.f_bsize) - 1; + sb->s_magic = XFS_SB_MAGIC; + sb->s_blocksize = mp->m_sb.sb_blocksize; + sb->s_blocksize_bits = ffs(sb->s_blocksize) - 1; sb->s_maxbytes = xfs_max_file_offset(sb->s_blocksize_bits); sb->s_time_gran = 1; set_posix_acl_flag(sb); |