Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1422686AbWHXVgj (ORCPT ); Thu, 24 Aug 2006 17:36:39 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1422704AbWHXVdq (ORCPT ); Thu, 24 Aug 2006 17:33:46 -0400 Received: from mx1.redhat.com ([66.187.233.31]:20196 "EHLO mx1.redhat.com") by vger.kernel.org with ESMTP id S1422700AbWHXVdW (ORCPT ); Thu, 24 Aug 2006 17:33:22 -0400 From: David Howells Subject: [PATCH 11/17] BLOCK: Move common FS-specific ioctls to linux/fs.h [try #2] Date: Thu, 24 Aug 2006 22:33:19 +0100 To: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org Cc: dhowells@redhat.com Message-Id: <20060824213318.21323.12558.stgit@warthog.cambridge.redhat.com> In-Reply-To: <20060824213252.21323.18226.stgit@warthog.cambridge.redhat.com> References: <20060824213252.21323.18226.stgit@warthog.cambridge.redhat.com> Content-Type: text/plain; charset=utf-8; format=fixed Content-Transfer-Encoding: 8bit User-Agent: StGIT/0.10 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 16986 Lines: 423 From: David Howells Move common FS-specific ioctls from linux/ext2_fs.h to linux/fs.h as FS_IOC_* and FS_IOC32_* and have the users of them use those as a base. Also move the GETFLAGS/SETFLAGS flags to linux/fs.h as FS_*_FL macros, and then have the other users use them as a base. Signed-Off-By: David Howells --- fs/cifs/ioctl.c | 7 ++--- fs/compat_ioctl.c | 15 ---------- fs/hfsplus/hfsplus_fs.h | 8 +---- fs/hfsplus/ioctl.c | 17 +++++------ fs/jfs/ioctl.c | 15 +++++----- include/linux/ext2_fs.h | 66 ++++++++++++++++++++++++------------------- include/linux/ext3_fs.h | 20 ++++++++++--- include/linux/fs.h | 39 +++++++++++++++++++++++++ include/linux/reiserfs_fs.h | 28 ++++++++---------- 9 files changed, 125 insertions(+), 90 deletions(-) diff --git a/fs/cifs/ioctl.c b/fs/cifs/ioctl.c index b0ea668..e34c7db 100644 --- a/fs/cifs/ioctl.c +++ b/fs/cifs/ioctl.c @@ -22,7 +22,6 @@ */ #include -#include #include "cifspdu.h" #include "cifsglob.h" #include "cifsproto.h" @@ -74,7 +73,7 @@ #endif /* CONFIG_CIFS_POSIX */ } break; #ifdef CONFIG_CIFS_POSIX - case EXT2_IOC_GETFLAGS: + case FS_IOC_GETFLAGS: if(CIFS_UNIX_EXTATTR_CAP & caps) { if (pSMBFile == NULL) break; @@ -82,12 +81,12 @@ #ifdef CONFIG_CIFS_POSIX &ExtAttrBits, &ExtAttrMask); if(rc == 0) rc = put_user(ExtAttrBits & - EXT2_FL_USER_VISIBLE, + FS_FL_USER_VISIBLE, (int __user *)arg); } break; - case EXT2_IOC_SETFLAGS: + case FS_IOC_SETFLAGS: if(CIFS_UNIX_EXTATTR_CAP & caps) { if(get_user(ExtAttrBits,(int __user *)arg)) { rc = -EFAULT; diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c index d33a2b1..c4d2849 100644 --- a/fs/compat_ioctl.c +++ b/fs/compat_ioctl.c @@ -123,21 +123,6 @@ #include #include #include -/* Aiee. Someone does not find a difference between int and long */ -#define EXT2_IOC32_GETFLAGS _IOR('f', 1, int) -#define EXT2_IOC32_SETFLAGS _IOW('f', 2, int) -#define EXT3_IOC32_GETVERSION _IOR('f', 3, int) -#define EXT3_IOC32_SETVERSION _IOW('f', 4, int) -#define EXT3_IOC32_GETRSVSZ _IOR('f', 5, int) -#define EXT3_IOC32_SETRSVSZ _IOW('f', 6, int) -#define EXT3_IOC32_GROUP_EXTEND _IOW('f', 7, unsigned int) -#ifdef CONFIG_JBD_DEBUG -#define EXT3_IOC32_WAIT_FOR_READONLY _IOR('f', 99, int) -#endif - -#define EXT2_IOC32_GETVERSION _IOR('v', 1, int) -#define EXT2_IOC32_SETVERSION _IOW('v', 2, int) - static int do_ioctl32_pointer(unsigned int fd, unsigned int cmd, unsigned long arg, struct file *f) { diff --git a/fs/hfsplus/hfsplus_fs.h b/fs/hfsplus/hfsplus_fs.h index 8a1ca5e..3915635 100644 --- a/fs/hfsplus/hfsplus_fs.h +++ b/fs/hfsplus/hfsplus_fs.h @@ -246,12 +246,8 @@ #define hfs_part_find hfsplus_part_find /* ext2 ioctls (EXT2_IOC_GETFLAGS and EXT2_IOC_SETFLAGS) to support * chattr/lsattr */ -#define HFSPLUS_IOC_EXT2_GETFLAGS _IOR('f', 1, long) -#define HFSPLUS_IOC_EXT2_SETFLAGS _IOW('f', 2, long) - -#define EXT2_FLAG_IMMUTABLE 0x00000010 /* Immutable file */ -#define EXT2_FLAG_APPEND 0x00000020 /* writes to file may only append */ -#define EXT2_FLAG_NODUMP 0x00000040 /* do not dump file */ +#define HFSPLUS_IOC_EXT2_GETFLAGS FS_IOC_GETFLAGS +#define HFSPLUS_IOC_EXT2_SETFLAGS FS_IOC_SETFLAGS /* diff --git a/fs/hfsplus/ioctl.c b/fs/hfsplus/ioctl.c index 13cf848..79fd104 100644 --- a/fs/hfsplus/ioctl.c +++ b/fs/hfsplus/ioctl.c @@ -28,11 +28,11 @@ int hfsplus_ioctl(struct inode *inode, s case HFSPLUS_IOC_EXT2_GETFLAGS: flags = 0; if (HFSPLUS_I(inode).rootflags & HFSPLUS_FLG_IMMUTABLE) - flags |= EXT2_FLAG_IMMUTABLE; /* EXT2_IMMUTABLE_FL */ + flags |= FS_IMMUTABLE_FL; /* EXT2_IMMUTABLE_FL */ if (HFSPLUS_I(inode).rootflags & HFSPLUS_FLG_APPEND) - flags |= EXT2_FLAG_APPEND; /* EXT2_APPEND_FL */ + flags |= FS_APPEND_FL; /* EXT2_APPEND_FL */ if (HFSPLUS_I(inode).userflags & HFSPLUS_FLG_NODUMP) - flags |= EXT2_FLAG_NODUMP; /* EXT2_NODUMP_FL */ + flags |= FS_NODUMP_FL; /* EXT2_NODUMP_FL */ return put_user(flags, (int __user *)arg); case HFSPLUS_IOC_EXT2_SETFLAGS: { if (IS_RDONLY(inode)) @@ -44,32 +44,31 @@ int hfsplus_ioctl(struct inode *inode, s if (get_user(flags, (int __user *)arg)) return -EFAULT; - if (flags & (EXT2_FLAG_IMMUTABLE|EXT2_FLAG_APPEND) || + if (flags & (FS_IMMUTABLE_FL|FS_APPEND_FL) || HFSPLUS_I(inode).rootflags & (HFSPLUS_FLG_IMMUTABLE|HFSPLUS_FLG_APPEND)) { if (!capable(CAP_LINUX_IMMUTABLE)) return -EPERM; } /* don't silently ignore unsupported ext2 flags */ - if (flags & ~(EXT2_FLAG_IMMUTABLE|EXT2_FLAG_APPEND| - EXT2_FLAG_NODUMP)) + if (flags & ~(FS_IMMUTABLE_FL|FS_APPEND_FL|FS_NODUMP_FL)) return -EOPNOTSUPP; - if (flags & EXT2_FLAG_IMMUTABLE) { /* EXT2_IMMUTABLE_FL */ + if (flags & FS_IMMUTABLE_FL) { /* EXT2_IMMUTABLE_FL */ inode->i_flags |= S_IMMUTABLE; HFSPLUS_I(inode).rootflags |= HFSPLUS_FLG_IMMUTABLE; } else { inode->i_flags &= ~S_IMMUTABLE; HFSPLUS_I(inode).rootflags &= ~HFSPLUS_FLG_IMMUTABLE; } - if (flags & EXT2_FLAG_APPEND) { /* EXT2_APPEND_FL */ + if (flags & FS_APPEND_FL) { /* EXT2_APPEND_FL */ inode->i_flags |= S_APPEND; HFSPLUS_I(inode).rootflags |= HFSPLUS_FLG_APPEND; } else { inode->i_flags &= ~S_APPEND; HFSPLUS_I(inode).rootflags &= ~HFSPLUS_FLG_APPEND; } - if (flags & EXT2_FLAG_NODUMP) /* EXT2_NODUMP_FL */ + if (flags & FS_NODUMP_FL) /* EXT2_NODUMP_FL */ HFSPLUS_I(inode).userflags |= HFSPLUS_FLG_NODUMP; else HFSPLUS_I(inode).userflags &= ~HFSPLUS_FLG_NODUMP; diff --git a/fs/jfs/ioctl.c b/fs/jfs/ioctl.c index 67b3774..37db524 100644 --- a/fs/jfs/ioctl.c +++ b/fs/jfs/ioctl.c @@ -6,7 +6,6 @@ */ #include -#include #include #include #include @@ -22,13 +21,13 @@ static struct { long jfs_flag; long ext2_flag; } jfs_map[] = { - {JFS_NOATIME_FL, EXT2_NOATIME_FL}, - {JFS_DIRSYNC_FL, EXT2_DIRSYNC_FL}, - {JFS_SYNC_FL, EXT2_SYNC_FL}, - {JFS_SECRM_FL, EXT2_SECRM_FL}, - {JFS_UNRM_FL, EXT2_UNRM_FL}, - {JFS_APPEND_FL, EXT2_APPEND_FL}, - {JFS_IMMUTABLE_FL, EXT2_IMMUTABLE_FL}, + {JFS_NOATIME_FL, FS_NOATIME_FL}, + {JFS_DIRSYNC_FL, FS_DIRSYNC_FL}, + {JFS_SYNC_FL, FS_SYNC_FL}, + {JFS_SECRM_FL, FS_SECRM_FL}, + {JFS_UNRM_FL, FS_UNRM_FL}, + {JFS_APPEND_FL, FS_APPEND_FL}, + {JFS_IMMUTABLE_FL, FS_IMMUTABLE_FL}, {0, 0}, }; diff --git a/include/linux/ext2_fs.h b/include/linux/ext2_fs.h index facf34e..9996d2e 100644 --- a/include/linux/ext2_fs.h +++ b/include/linux/ext2_fs.h @@ -169,41 +169,49 @@ #define EXT2_TIND_BLOCK (EXT2_DIND_BLO #define EXT2_N_BLOCKS (EXT2_TIND_BLOCK + 1) /* - * Inode flags - */ -#define EXT2_SECRM_FL 0x00000001 /* Secure deletion */ -#define EXT2_UNRM_FL 0x00000002 /* Undelete */ -#define EXT2_COMPR_FL 0x00000004 /* Compress file */ -#define EXT2_SYNC_FL 0x00000008 /* Synchronous updates */ -#define EXT2_IMMUTABLE_FL 0x00000010 /* Immutable file */ -#define EXT2_APPEND_FL 0x00000020 /* writes to file may only append */ -#define EXT2_NODUMP_FL 0x00000040 /* do not dump file */ -#define EXT2_NOATIME_FL 0x00000080 /* do not update atime */ + * Inode flags (GETFLAGS/SETFLAGS) + */ +#define EXT2_SECRM_FL FS_SECRM_FL /* Secure deletion */ +#define EXT2_UNRM_FL FS_UNRM_FL /* Undelete */ +#define EXT2_COMPR_FL FS_COMPR_FL /* Compress file */ +#define EXT2_SYNC_FL FS_SYNC_FL /* Synchronous updates */ +#define EXT2_IMMUTABLE_FL FS_IMMUTABLE_FL /* Immutable file */ +#define EXT2_APPEND_FL FS_APPEND_FL /* writes to file may only append */ +#define EXT2_NODUMP_FL FS_NODUMP_FL /* do not dump file */ +#define EXT2_NOATIME_FL FS_NOATIME_FL /* do not update atime */ /* Reserved for compression usage... */ -#define EXT2_DIRTY_FL 0x00000100 -#define EXT2_COMPRBLK_FL 0x00000200 /* One or more compressed clusters */ -#define EXT2_NOCOMP_FL 0x00000400 /* Don't compress */ -#define EXT2_ECOMPR_FL 0x00000800 /* Compression error */ +#define EXT2_DIRTY_FL FS_DIRTY_FL +#define EXT2_COMPRBLK_FL FS_COMPRBLK_FL /* One or more compressed clusters */ +#define EXT2_NOCOMP_FL FS_NOCOMP_FL /* Don't compress */ +#define EXT2_ECOMPR_FL FS_ECOMPR_FL /* Compression error */ /* End compression flags --- maybe not all used */ -#define EXT2_BTREE_FL 0x00001000 /* btree format dir */ -#define EXT2_INDEX_FL 0x00001000 /* hash-indexed directory */ -#define EXT2_IMAGIC_FL 0x00002000 /* AFS directory */ -#define EXT2_JOURNAL_DATA_FL 0x00004000 /* Reserved for ext3 */ -#define EXT2_NOTAIL_FL 0x00008000 /* file tail should not be merged */ -#define EXT2_DIRSYNC_FL 0x00010000 /* dirsync behaviour (directories only) */ -#define EXT2_TOPDIR_FL 0x00020000 /* Top of directory hierarchies*/ -#define EXT2_RESERVED_FL 0x80000000 /* reserved for ext2 lib */ - -#define EXT2_FL_USER_VISIBLE 0x0003DFFF /* User visible flags */ -#define EXT2_FL_USER_MODIFIABLE 0x000380FF /* User modifiable flags */ +#define EXT2_BTREE_FL FS_BTREE_FL /* btree format dir */ +#define EXT2_INDEX_FL FS_INDEX_FL /* hash-indexed directory */ +#define EXT2_IMAGIC_FL FS_IMAGIC_FL /* AFS directory */ +#define EXT2_JOURNAL_DATA_FL FS_JOURNAL_DATA_FL /* Reserved for ext3 */ +#define EXT2_NOTAIL_FL FS_NOTAIL_FL /* file tail should not be merged */ +#define EXT2_DIRSYNC_FL FS_DIRSYNC_FL /* dirsync behaviour (directories only) */ +#define EXT2_TOPDIR_FL FS_TOPDIR_FL /* Top of directory hierarchies*/ +#define EXT2_RESERVED_FL FS_RESERVED_FL /* reserved for ext2 lib */ + +#define EXT2_FL_USER_VISIBLE FS_FL_USER_VISIBLE /* User visible flags */ +#define EXT2_FL_USER_MODIFIABLE FS_FL_USER_MODIFIABLE /* User modifiable flags */ /* * ioctl commands */ -#define EXT2_IOC_GETFLAGS _IOR('f', 1, long) -#define EXT2_IOC_SETFLAGS _IOW('f', 2, long) -#define EXT2_IOC_GETVERSION _IOR('v', 1, long) -#define EXT2_IOC_SETVERSION _IOW('v', 2, long) +#define EXT2_IOC_GETFLAGS FS_IOC_GETFLAGS +#define EXT2_IOC_SETFLAGS FS_IOC_SETFLAGS +#define EXT2_IOC_GETVERSION FS_IOC_GETVERSION +#define EXT2_IOC_SETVERSION FS_IOC_SETVERSION + +/* + * ioctl commands in 32 bit emulation + */ +#define EXT2_IOC32_GETFLAGS FS_IOC32_GETFLAGS +#define EXT2_IOC32_SETFLAGS FS_IOC32_SETFLAGS +#define EXT2_IOC32_GETVERSION FS_IOC32_GETVERSION +#define EXT2_IOC32_SETVERSION FS_IOC32_SETVERSION /* * Structure of an inode on the disk diff --git a/include/linux/ext3_fs.h b/include/linux/ext3_fs.h index 9f9cce7..90cfba2 100644 --- a/include/linux/ext3_fs.h +++ b/include/linux/ext3_fs.h @@ -220,14 +220,14 @@ struct ext3_new_group_data { /* * ioctl commands */ -#define EXT3_IOC_GETFLAGS _IOR('f', 1, long) -#define EXT3_IOC_SETFLAGS _IOW('f', 2, long) +#define EXT3_IOC_GETFLAGS FS_IOC_GETFLAGS +#define EXT3_IOC_SETFLAGS FS_IOC_SETFLAGS #define EXT3_IOC_GETVERSION _IOR('f', 3, long) #define EXT3_IOC_SETVERSION _IOW('f', 4, long) #define EXT3_IOC_GROUP_EXTEND _IOW('f', 7, unsigned long) #define EXT3_IOC_GROUP_ADD _IOW('f', 8,struct ext3_new_group_input) -#define EXT3_IOC_GETVERSION_OLD _IOR('v', 1, long) -#define EXT3_IOC_SETVERSION_OLD _IOW('v', 2, long) +#define EXT3_IOC_GETVERSION_OLD FS_IOC_GETVERSION +#define EXT3_IOC_SETVERSION_OLD FS_IOC_SETVERSION #ifdef CONFIG_JBD_DEBUG #define EXT3_IOC_WAIT_FOR_READONLY _IOR('f', 99, long) #endif @@ -235,6 +235,18 @@ #define EXT3_IOC_GETRSVSZ _IOR('f', 5, #define EXT3_IOC_SETRSVSZ _IOW('f', 6, long) /* + * ioctl commands in 32 bit emulation + */ +#define EXT3_IOC32_GETVERSION _IOR('f', 3, int) +#define EXT3_IOC32_SETVERSION _IOW('f', 4, int) +#define EXT3_IOC32_GETRSVSZ _IOR('f', 5, int) +#define EXT3_IOC32_SETRSVSZ _IOW('f', 6, int) +#define EXT3_IOC32_GROUP_EXTEND _IOW('f', 7, unsigned int) +#ifdef CONFIG_JBD_DEBUG +#define EXT3_IOC32_WAIT_FOR_READONLY _IOR('f', 99, int) +#endif + +/* * Mount options */ struct ext3_mount_options { diff --git a/include/linux/fs.h b/include/linux/fs.h index 429bda5..7339d41 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -216,6 +216,45 @@ #define BMAP_IOCTL 1 /* obsolete - kept #define FIBMAP _IO(0x00,1) /* bmap access */ #define FIGETBSZ _IO(0x00,2) /* get the block size used for bmap */ +#define FS_IOC_GETFLAGS _IOR('f', 1, long) +#define FS_IOC_SETFLAGS _IOW('f', 2, long) +#define FS_IOC_GETVERSION _IOR('v', 1, long) +#define FS_IOC_SETVERSION _IOW('v', 2, long) +#define FS_IOC32_GETFLAGS _IOR('f', 1, int) +#define FS_IOC32_SETFLAGS _IOW('f', 2, int) +#define FS_IOC32_GETVERSION _IOR('v', 1, int) +#define FS_IOC32_SETVERSION _IOW('v', 2, int) + +/* + * Inode flags (FS_IOC_GETFLAGS / FS_IOC_SETFLAGS) + */ +#define FS_SECRM_FL 0x00000001 /* Secure deletion */ +#define FS_UNRM_FL 0x00000002 /* Undelete */ +#define FS_COMPR_FL 0x00000004 /* Compress file */ +#define FS_SYNC_FL 0x00000008 /* Synchronous updates */ +#define FS_IMMUTABLE_FL 0x00000010 /* Immutable file */ +#define FS_APPEND_FL 0x00000020 /* writes to file may only append */ +#define FS_NODUMP_FL 0x00000040 /* do not dump file */ +#define FS_NOATIME_FL 0x00000080 /* do not update atime */ +/* Reserved for compression usage... */ +#define FS_DIRTY_FL 0x00000100 +#define FS_COMPRBLK_FL 0x00000200 /* One or more compressed clusters */ +#define FS_NOCOMP_FL 0x00000400 /* Don't compress */ +#define FS_ECOMPR_FL 0x00000800 /* Compression error */ +/* End compression flags --- maybe not all used */ +#define FS_BTREE_FL 0x00001000 /* btree format dir */ +#define FS_INDEX_FL 0x00001000 /* hash-indexed directory */ +#define FS_IMAGIC_FL 0x00002000 /* AFS directory */ +#define FS_JOURNAL_DATA_FL 0x00004000 /* Reserved for ext3 */ +#define FS_NOTAIL_FL 0x00008000 /* file tail should not be merged */ +#define FS_DIRSYNC_FL 0x00010000 /* dirsync behaviour (directories only) */ +#define FS_TOPDIR_FL 0x00020000 /* Top of directory hierarchies*/ +#define FS_RESERVED_FL 0x80000000 /* reserved for ext2 lib */ + +#define FS_FL_USER_VISIBLE 0x0003DFFF /* User visible flags */ +#define FS_FL_USER_MODIFIABLE 0x000380FF /* User modifiable flags */ + + #define SYNC_FILE_RANGE_WAIT_BEFORE 1 #define SYNC_FILE_RANGE_WRITE 2 #define SYNC_FILE_RANGE_WAIT_AFTER 4 diff --git a/include/linux/reiserfs_fs.h b/include/linux/reiserfs_fs.h index daa2d83..54c3054 100644 --- a/include/linux/reiserfs_fs.h +++ b/include/linux/reiserfs_fs.h @@ -813,21 +813,19 @@ #define sd_v1_first_direct_byte(sdp) \ #define set_sd_v1_first_direct_byte(sdp,v) \ ((sdp)->sd_first_direct_byte = cpu_to_le32(v)) -#include - /* inode flags stored in sd_attrs (nee sd_reserved) */ /* we want common flags to have the same values as in ext2, so chattr(1) will work without problems */ -#define REISERFS_IMMUTABLE_FL EXT2_IMMUTABLE_FL -#define REISERFS_APPEND_FL EXT2_APPEND_FL -#define REISERFS_SYNC_FL EXT2_SYNC_FL -#define REISERFS_NOATIME_FL EXT2_NOATIME_FL -#define REISERFS_NODUMP_FL EXT2_NODUMP_FL -#define REISERFS_SECRM_FL EXT2_SECRM_FL -#define REISERFS_UNRM_FL EXT2_UNRM_FL -#define REISERFS_COMPR_FL EXT2_COMPR_FL -#define REISERFS_NOTAIL_FL EXT2_NOTAIL_FL +#define REISERFS_IMMUTABLE_FL FS_IMMUTABLE_FL +#define REISERFS_APPEND_FL FS_APPEND_FL +#define REISERFS_SYNC_FL FS_SYNC_FL +#define REISERFS_NOATIME_FL FS_NOATIME_FL +#define REISERFS_NODUMP_FL FS_NODUMP_FL +#define REISERFS_SECRM_FL FS_SECRM_FL +#define REISERFS_UNRM_FL FS_UNRM_FL +#define REISERFS_COMPR_FL FS_COMPR_FL +#define REISERFS_NOTAIL_FL FS_NOTAIL_FL /* persistent flags that file inherits from the parent directory */ #define REISERFS_INHERIT_MASK ( REISERFS_IMMUTABLE_FL | \ @@ -2174,10 +2172,10 @@ int reiserfs_ioctl(struct inode *inode, #define REISERFS_IOC_UNPACK _IOW(0xCD,1,long) /* define following flags to be the same as in ext2, so that chattr(1), lsattr(1) will work with us. */ -#define REISERFS_IOC_GETFLAGS EXT2_IOC_GETFLAGS -#define REISERFS_IOC_SETFLAGS EXT2_IOC_SETFLAGS -#define REISERFS_IOC_GETVERSION EXT2_IOC_GETVERSION -#define REISERFS_IOC_SETVERSION EXT2_IOC_SETVERSION +#define REISERFS_IOC_GETFLAGS FS_IOC_GETFLAGS +#define REISERFS_IOC_SETFLAGS FS_IOC_SETFLAGS +#define REISERFS_IOC_GETVERSION FS_IOC_GETVERSION +#define REISERFS_IOC_SETVERSION FS_IOC_SETVERSION /* Locking primitives */ /* Right now we are still falling back to (un)lock_kernel, but eventually that - 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