diff options
Diffstat (limited to 'fs/jfs/jfs_filsys.h')
| -rw-r--r-- | fs/jfs/jfs_filsys.h | 76 |
1 files changed, 39 insertions, 37 deletions
diff --git a/fs/jfs/jfs_filsys.h b/fs/jfs/jfs_filsys.h index 72a5588faec..b67d64671bb 100644 --- a/fs/jfs/jfs_filsys.h +++ b/fs/jfs/jfs_filsys.h @@ -3,16 +3,16 @@ * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or + * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. - * + * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See * the GNU General Public License for more details. * * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software + * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef _H_JFS_FILSYS @@ -21,46 +21,40 @@ /* * jfs_filsys.h * - * file system (implementation-dependent) constants + * file system (implementation-dependent) constants * - * refer to <limits.h> for system wide implementation-dependent constants + * refer to <limits.h> for system wide implementation-dependent constants */ /* * file system option (superblock flag) */ -/* mount time flag to disable journaling to disk */ -#define JFS_NOINTEGRITY 0x00000010 + +/* directory option */ +#define JFS_UNICODE 0x00000001 /* unicode name */ /* mount time flags for error handling */ -#define JFS_ERR_REMOUNT_RO 0x00000002 /* remount read-only */ -#define JFS_ERR_CONTINUE 0x00000004 /* continue */ -#define JFS_ERR_PANIC 0x00000008 /* panic */ +#define JFS_ERR_REMOUNT_RO 0x00000002 /* remount read-only */ +#define JFS_ERR_CONTINUE 0x00000004 /* continue */ +#define JFS_ERR_PANIC 0x00000008 /* panic */ +/* Quota support */ #define JFS_USRQUOTA 0x00000010 #define JFS_GRPQUOTA 0x00000020 -/* platform option (conditional compilation) */ -#define JFS_AIX 0x80000000 /* AIX support */ -/* POSIX name/directory support */ - -#define JFS_OS2 0x40000000 /* OS/2 support */ -/* case-insensitive name/directory support */ - -#define JFS_DFS 0x20000000 /* DCE DFS LFS support */ - -#define JFS_LINUX 0x10000000 /* Linux support */ -/* case-sensitive name/directory support */ +/* mount time flag to disable journaling to disk */ +#define JFS_NOINTEGRITY 0x00000040 -/* directory option */ -#define JFS_UNICODE 0x00000001 /* unicode name */ +/* mount time flag to enable TRIM to ssd disks */ +#define JFS_DISCARD 0x00000080 /* commit option */ #define JFS_COMMIT 0x00000f00 /* commit option mask */ #define JFS_GROUPCOMMIT 0x00000100 /* group (of 1) commit */ #define JFS_LAZYCOMMIT 0x00000200 /* lazy commit */ -#define JFS_TMPFS 0x00000400 /* temporary file system - +#define JFS_TMPFS 0x00000400 /* temporary file system - * do not log/commit: + * Never implemented */ /* log logical volume option */ @@ -74,16 +68,24 @@ #define JFS_SPARSE 0x00020000 /* sparse regular file */ /* DASD Limits F226941 */ -#define JFS_DASD_ENABLED 0x00040000 /* DASD limits enabled */ -#define JFS_DASD_PRIME 0x00080000 /* Prime DASD usage on boot */ +#define JFS_DASD_ENABLED 0x00040000 /* DASD limits enabled */ +#define JFS_DASD_PRIME 0x00080000 /* Prime DASD usage on boot */ /* big endian flag */ -#define JFS_SWAP_BYTES 0x00100000 /* running on big endian computer */ +#define JFS_SWAP_BYTES 0x00100000 /* running on big endian computer */ /* Directory index */ -#define JFS_DIR_INDEX 0x00200000 /* Persistant index for */ - /* directory entries */ +#define JFS_DIR_INDEX 0x00200000 /* Persistent index for */ +/* platform options */ +#define JFS_LINUX 0x10000000 /* Linux support */ +#define JFS_DFS 0x20000000 /* DCE DFS LFS support */ +/* Never implemented */ + +#define JFS_OS2 0x40000000 /* OS/2 support */ +/* case-insensitive name/directory support */ + +#define JFS_AIX 0x80000000 /* AIX support */ /* * buffer cache configuration @@ -113,10 +115,10 @@ #define IDATASIZE 256 /* inode inline data size */ #define IXATTRSIZE 128 /* inode inline extended attribute size */ -#define XTPAGE_SIZE 4096 -#define log2_PAGESIZE 12 +#define XTPAGE_SIZE 4096 +#define log2_PAGESIZE 12 -#define IAG_SIZE 4096 +#define IAG_SIZE 4096 #define IAG_EXTENT_SIZE 4096 #define INOSPERIAG 4096 /* number of disk inodes per iag */ #define L2INOSPERIAG 12 /* l2 number of disk inodes per iag */ @@ -196,7 +198,7 @@ * followed by 1st extent of map */ #define AITBL_OFF (AIMAP_OFF + (SIZE_OF_MAP_PAGE << 1)) - /* + /* * 1st extent of aggregate inode table */ #define SUPER2_OFF (AITBL_OFF + INODE_EXTENT_SIZE) @@ -270,13 +272,13 @@ */ #define FM_CLEAN 0x00000000 /* file system is unmounted and clean */ #define FM_MOUNT 0x00000001 /* file system is mounted cleanly */ -#define FM_DIRTY 0x00000002 /* file system was not unmounted and clean - * when mounted or +#define FM_DIRTY 0x00000002 /* file system was not unmounted and clean + * when mounted or * commit failure occurred while being mounted: - * fsck() must be run to repair + * fsck() must be run to repair */ #define FM_LOGREDO 0x00000004 /* log based recovery (logredo()) failed: - * fsck() must be run to repair + * fsck() must be run to repair */ #define FM_EXTENDFS 0x00000008 /* file system extendfs() in progress */ |