From fcafb71b57a039f2113b0321b3b5535fea3a0aca Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Mon, 9 Feb 2009 08:47:34 +0100 Subject: xfs: get rid of indirections in the quotaops implementation Currently we call from the nicely abstracted linux quotaops into a ugly multiplexer just to split the calls out at the same boundary again. Rewrite the quota ops handling to remove that obfucation. Signed-off-by: Christoph Hellwig Reviewed-by: Dave Chinner --- fs/xfs/quota/xfs_qm_syscalls.c | 188 ++--------------------------------------- 1 file changed, 7 insertions(+), 181 deletions(-) (limited to 'fs/xfs/quota/xfs_qm_syscalls.c') diff --git a/fs/xfs/quota/xfs_qm_syscalls.c b/fs/xfs/quota/xfs_qm_syscalls.c index 68139b38aede..b00c8d484aa9 100644 --- a/fs/xfs/quota/xfs_qm_syscalls.c +++ b/fs/xfs/quota/xfs_qm_syscalls.c @@ -57,134 +57,15 @@ # define qdprintk(s, args...) do { } while (0) #endif -STATIC int xfs_qm_scall_trunc_qfiles(xfs_mount_t *, uint); -STATIC int xfs_qm_scall_getquota(xfs_mount_t *, xfs_dqid_t, uint, - fs_disk_quota_t *); -STATIC int xfs_qm_scall_getqstat(xfs_mount_t *, fs_quota_stat_t *); -STATIC int xfs_qm_scall_setqlim(xfs_mount_t *, xfs_dqid_t, uint, - fs_disk_quota_t *); -STATIC int xfs_qm_scall_quotaon(xfs_mount_t *, uint); -STATIC int xfs_qm_scall_quotaoff(xfs_mount_t *, uint, boolean_t); STATIC int xfs_qm_log_quotaoff(xfs_mount_t *, xfs_qoff_logitem_t **, uint); STATIC int xfs_qm_log_quotaoff_end(xfs_mount_t *, xfs_qoff_logitem_t *, uint); -STATIC uint xfs_qm_import_flags(uint); STATIC uint xfs_qm_export_flags(uint); -STATIC uint xfs_qm_import_qtype_flags(uint); STATIC uint xfs_qm_export_qtype_flags(uint); STATIC void xfs_qm_export_dquot(xfs_mount_t *, xfs_disk_dquot_t *, fs_disk_quota_t *); -/* - * The main distribution switch of all XFS quotactl system calls. - */ -int -xfs_qm_quotactl( - xfs_mount_t *mp, - int cmd, - int id, - xfs_caddr_t addr) -{ - int error; - - ASSERT(addr != NULL || cmd == Q_XQUOTASYNC); - - /* - * The following commands are valid even when quotaoff. - */ - switch (cmd) { - case Q_XQUOTARM: - /* - * Truncate quota files. quota must be off. - */ - if (XFS_IS_QUOTA_ON(mp)) - return XFS_ERROR(EINVAL); - if (mp->m_flags & XFS_MOUNT_RDONLY) - return XFS_ERROR(EROFS); - return (xfs_qm_scall_trunc_qfiles(mp, - xfs_qm_import_qtype_flags(*(uint *)addr))); - - case Q_XGETQSTAT: - /* - * Get quota status information. - */ - return (xfs_qm_scall_getqstat(mp, (fs_quota_stat_t *)addr)); - - case Q_XQUOTAON: - /* - * QUOTAON - enabling quota enforcement. - * Quota accounting must be turned on at mount time. - */ - if (mp->m_flags & XFS_MOUNT_RDONLY) - return XFS_ERROR(EROFS); - return (xfs_qm_scall_quotaon(mp, - xfs_qm_import_flags(*(uint *)addr))); - - case Q_XQUOTAOFF: - if (mp->m_flags & XFS_MOUNT_RDONLY) - return XFS_ERROR(EROFS); - break; - - case Q_XQUOTASYNC: - return xfs_sync_inodes(mp, SYNC_DELWRI); - - default: - break; - } - - if (! XFS_IS_QUOTA_ON(mp)) - return XFS_ERROR(ESRCH); - - switch (cmd) { - case Q_XQUOTAOFF: - if (mp->m_flags & XFS_MOUNT_RDONLY) - return XFS_ERROR(EROFS); - error = xfs_qm_scall_quotaoff(mp, - xfs_qm_import_flags(*(uint *)addr), - B_FALSE); - break; - - case Q_XGETQUOTA: - error = xfs_qm_scall_getquota(mp, (xfs_dqid_t)id, XFS_DQ_USER, - (fs_disk_quota_t *)addr); - break; - case Q_XGETGQUOTA: - error = xfs_qm_scall_getquota(mp, (xfs_dqid_t)id, XFS_DQ_GROUP, - (fs_disk_quota_t *)addr); - break; - case Q_XGETPQUOTA: - error = xfs_qm_scall_getquota(mp, (xfs_dqid_t)id, XFS_DQ_PROJ, - (fs_disk_quota_t *)addr); - break; - - case Q_XSETQLIM: - if (mp->m_flags & XFS_MOUNT_RDONLY) - return XFS_ERROR(EROFS); - error = xfs_qm_scall_setqlim(mp, (xfs_dqid_t)id, XFS_DQ_USER, - (fs_disk_quota_t *)addr); - break; - case Q_XSETGQLIM: - if (mp->m_flags & XFS_MOUNT_RDONLY) - return XFS_ERROR(EROFS); - error = xfs_qm_scall_setqlim(mp, (xfs_dqid_t)id, XFS_DQ_GROUP, - (fs_disk_quota_t *)addr); - break; - case Q_XSETPQLIM: - if (mp->m_flags & XFS_MOUNT_RDONLY) - return XFS_ERROR(EROFS); - error = xfs_qm_scall_setqlim(mp, (xfs_dqid_t)id, XFS_DQ_PROJ, - (fs_disk_quota_t *)addr); - break; - - default: - error = XFS_ERROR(EINVAL); - break; - } - - return (error); -} - /* * Turn off quota accounting and/or enforcement for all udquots and/or * gdquots. Called only at unmount time. @@ -193,11 +74,10 @@ xfs_qm_quotactl( * incore, and modifies the ondisk dquot directly. Therefore, for example, * it is an error to call this twice, without purging the cache. */ -STATIC int +int xfs_qm_scall_quotaoff( xfs_mount_t *mp, - uint flags, - boolean_t force) + uint flags) { uint dqtype; int error; @@ -205,8 +85,6 @@ xfs_qm_scall_quotaoff( xfs_qoff_logitem_t *qoffstart; int nculprits; - if (!force && !capable(CAP_SYS_ADMIN)) - return XFS_ERROR(EPERM); /* * No file system can have quotas enabled on disk but not in core. * Note that quota utilities (like quotaoff) _expect_ @@ -375,7 +253,7 @@ out_error: return (error); } -STATIC int +int xfs_qm_scall_trunc_qfiles( xfs_mount_t *mp, uint flags) @@ -383,8 +261,6 @@ xfs_qm_scall_trunc_qfiles( int error = 0, error2 = 0; xfs_inode_t *qip; - if (!capable(CAP_SYS_ADMIN)) - return XFS_ERROR(EPERM); if (!xfs_sb_version_hasquota(&mp->m_sb) || flags == 0) { qdprintk("qtrunc flags=%x m_qflags=%x\n", flags, mp->m_qflags); return XFS_ERROR(EINVAL); @@ -416,7 +292,7 @@ xfs_qm_scall_trunc_qfiles( * effect immediately. * (Switching on quota accounting must be done at mount time.) */ -STATIC int +int xfs_qm_scall_quotaon( xfs_mount_t *mp, uint flags) @@ -426,9 +302,6 @@ xfs_qm_scall_quotaon( uint accflags; __int64_t sbflags; - if (!capable(CAP_SYS_ADMIN)) - return XFS_ERROR(EPERM); - flags &= (XFS_ALL_QUOTA_ACCT | XFS_ALL_QUOTA_ENFD); /* * Switching on quota accounting must be done at mount time. @@ -517,7 +390,7 @@ xfs_qm_scall_quotaon( /* * Return quota status information, such as uquota-off, enforcements, etc. */ -STATIC int +int xfs_qm_scall_getqstat( xfs_mount_t *mp, fs_quota_stat_t *out) @@ -582,7 +455,7 @@ xfs_qm_scall_getqstat( /* * Adjust quota limits, and start/stop timers accordingly. */ -STATIC int +int xfs_qm_scall_setqlim( xfs_mount_t *mp, xfs_dqid_t id, @@ -595,9 +468,6 @@ xfs_qm_scall_setqlim( int error; xfs_qcnt_t hard, soft; - if (!capable(CAP_SYS_ADMIN)) - return XFS_ERROR(EPERM); - if ((newlim->d_fieldmask & (FS_DQ_LIMIT_MASK|FS_DQ_TIMER_MASK|FS_DQ_WARNS_MASK)) == 0) return (0); @@ -742,7 +612,7 @@ xfs_qm_scall_setqlim( return error; } -STATIC int +int xfs_qm_scall_getquota( xfs_mount_t *mp, xfs_dqid_t id, @@ -934,30 +804,6 @@ xfs_qm_export_dquot( #endif } -STATIC uint -xfs_qm_import_qtype_flags( - uint uflags) -{ - uint oflags = 0; - - /* - * Can't be more than one, or none. - */ - if (((uflags & (XFS_GROUP_QUOTA | XFS_USER_QUOTA)) == - (XFS_GROUP_QUOTA | XFS_USER_QUOTA)) || - ((uflags & (XFS_GROUP_QUOTA | XFS_PROJ_QUOTA)) == - (XFS_GROUP_QUOTA | XFS_PROJ_QUOTA)) || - ((uflags & (XFS_USER_QUOTA | XFS_PROJ_QUOTA)) == - (XFS_USER_QUOTA | XFS_PROJ_QUOTA)) || - ((uflags & (XFS_GROUP_QUOTA|XFS_USER_QUOTA|XFS_PROJ_QUOTA)) == 0)) - return (0); - - oflags |= (uflags & XFS_USER_QUOTA) ? XFS_DQ_USER : 0; - oflags |= (uflags & XFS_PROJ_QUOTA) ? XFS_DQ_PROJ : 0; - oflags |= (uflags & XFS_GROUP_QUOTA) ? XFS_DQ_GROUP: 0; - return oflags; -} - STATIC uint xfs_qm_export_qtype_flags( uint flags) @@ -978,26 +824,6 @@ xfs_qm_export_qtype_flags( XFS_PROJ_QUOTA : XFS_GROUP_QUOTA; } -STATIC uint -xfs_qm_import_flags( - uint uflags) -{ - uint flags = 0; - - if (uflags & XFS_QUOTA_UDQ_ACCT) - flags |= XFS_UQUOTA_ACCT; - if (uflags & XFS_QUOTA_PDQ_ACCT) - flags |= XFS_PQUOTA_ACCT; - if (uflags & XFS_QUOTA_GDQ_ACCT) - flags |= XFS_GQUOTA_ACCT; - if (uflags & XFS_QUOTA_UDQ_ENFD) - flags |= XFS_UQUOTA_ENFD; - if (uflags & (XFS_QUOTA_PDQ_ENFD|XFS_QUOTA_GDQ_ENFD)) - flags |= XFS_OQUOTA_ENFD; - return (flags); -} - - STATIC uint xfs_qm_export_flags( uint flags) -- cgit v1.2.1