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| author | Carlos Maiolino <cmaiolino@redhat.com> | 2012-08-17 18:19:38 -0300 |
|---|---|---|
| committer | Ben Myers <bpm@sgi.com> | 2012-09-26 15:41:39 -0500 |
| commit | c3a58fecdd1934a8538ada9073107625f5151687 (patch) | |
| tree | 96f2aa96d890e22266dfd961e569ec11bd3251b5 /fs | |
| parent | 4026c9fde9c67266932afd209e25bfef4474a1be (diff) | |
| download | linux-stable-c3a58fecdd1934a8538ada9073107625f5151687.tar.gz linux-stable-c3a58fecdd1934a8538ada9073107625f5151687.tar.bz2 linux-stable-c3a58fecdd1934a8538ada9073107625f5151687.zip | |
Make inode64 a remountable option
Actually, there is no reason about why a user must umount and mount a
XFS filesystem to enable 'inode64' option. So, this patch makes this a
remountable option.
Signed-off-by: Carlos Maiolino <cmaiolino@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/xfs/xfs_super.c | 30 |
1 files changed, 29 insertions, 1 deletions
diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c index 19e2380fb867..c416a01fcb14 100644 --- a/fs/xfs/xfs_super.c +++ b/fs/xfs/xfs_super.c @@ -120,12 +120,13 @@ mempool_t *xfs_ioend_pool; * in the future, too. */ enum { - Opt_barrier, Opt_nobarrier, Opt_err + Opt_barrier, Opt_nobarrier, Opt_inode64, Opt_err }; static const match_table_t tokens = { {Opt_barrier, "barrier"}, {Opt_nobarrier, "nobarrier"}, + {Opt_inode64, "inode64"}, {Opt_err, NULL} }; @@ -1031,6 +1032,30 @@ xfs_restore_resvblks(struct xfs_mount *mp) xfs_reserve_blocks(mp, &resblks, NULL); } +STATIC void +xfs_set_inode64(struct xfs_mount *mp) +{ + int i = 0; + + for (i = 0; i < mp->m_sb.sb_agcount; i++) { + struct xfs_perag *pag; + + pag = xfs_perag_get(mp, i); + pag->pagi_inodeok = 1; + pag->pagf_metadata = 0; + xfs_perag_put(pag); + } + + /* There is no need for lock protection on m_flags, + * the rw_semaphore of the VFS superblock is locked + * during mount/umount/remount operations, so this is + * enough to avoid concurency on the m_flags field + */ + mp->m_flags &= ~(XFS_MOUNT_32BITINODES | + XFS_MOUNT_SMALL_INUMS); + mp->m_maxagi = i; +} + STATIC int xfs_fs_remount( struct super_block *sb, @@ -1056,6 +1081,9 @@ xfs_fs_remount( case Opt_nobarrier: mp->m_flags &= ~XFS_MOUNT_BARRIER; break; + case Opt_inode64: + xfs_set_inode64(mp); + break; default: /* * Logically we would return an error here to prevent |