[XFS] Now that xfs_setattr is only used for attributes set from ->setattr

it can be switched to take struct iattr directly and thus simplify the
implementation greatly. Also rename the ATTR_ flags to XFS_ATTR_ to not
conflict with the ATTR_ flags used by the VFS.

SGI-PV: 984565

SGI-Modid: xfs-linux-melb:xfs-kern:31678a

Signed-off-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Tim Shimmin <tes@sgi.com>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>

1 files changed, 73 insertions, 99 deletions

diff --git a/fs/xfs/xfs_vnodeops.c b/fs/xfs/xfs_vnodeops.c
index ed399523b782..b792a121b1a7 100644
--- a/fs/xfs/xfs_vnodeops.c
+++ b/fs/xfs/xfs_vnodeops.c
@@ -75,19 +75,16 @@ xfs_open(
         return 0;
 }
 
-/*
- * xfs_setattr
- */
 int
 xfs_setattr(
-        xfs_inode_t             *ip,
-        bhv_vattr_t             *vap,
+        struct xfs_inode        *ip,
+        struct iattr            *iattr,
         int                     flags,
         cred_t                  *credp)
 {
         xfs_mount_t             *mp = ip->i_mount;
+        int                     mask = iattr->ia_valid;
         xfs_trans_t             *tp;
-        int                     mask;
         int                     code;
         uint                    lock_flags;
         uint                    commit_flags=0;
@@ -103,30 +100,9 @@ xfs_setattr(
         if (mp->m_flags & XFS_MOUNT_RDONLY)
                 return XFS_ERROR(EROFS);
 
-        /*
-         * Cannot set certain attributes.
-         */
-        mask = vap->va_mask;
-        if (mask & XFS_AT_NOSET) {
-                return XFS_ERROR(EINVAL);
-        }
-
         if (XFS_FORCED_SHUTDOWN(mp))
                 return XFS_ERROR(EIO);
 
-        /*
-         * Timestamps do not need to be logged and hence do not
-         * need to be done within a transaction.
-         */
-        if (mask & XFS_AT_UPDTIMES) {
-                ASSERT((mask & ~XFS_AT_UPDTIMES) == 0);
-                timeflags = ((mask & XFS_AT_UPDATIME) ? XFS_ICHGTIME_ACC : 0) |
-                            ((mask & XFS_AT_UPDCTIME) ? XFS_ICHGTIME_CHG : 0) |
-                            ((mask & XFS_AT_UPDMTIME) ? XFS_ICHGTIME_MOD : 0);
-                xfs_ichgtime(ip, timeflags);
-                return 0;
-        }
-
         olddquot1 = olddquot2 = NULL;
         udqp = gdqp = NULL;
 
@@ -138,17 +114,17 @@ xfs_setattr(
          * If the IDs do change before we take the ilock, we're covered
          * because the i_*dquot fields will get updated anyway.
          */
-        if (XFS_IS_QUOTA_ON(mp) && (mask & (XFS_AT_UID|XFS_AT_GID))) {
+        if (XFS_IS_QUOTA_ON(mp) && (mask & (ATTR_UID|ATTR_GID))) {
                 uint    qflags = 0;
 
-                if ((mask & XFS_AT_UID) && XFS_IS_UQUOTA_ON(mp)) {
-                        uid = vap->va_uid;
+                if ((mask & ATTR_UID) && XFS_IS_UQUOTA_ON(mp)) {
+                        uid = iattr->ia_uid;
                         qflags |= XFS_QMOPT_UQUOTA;
                 } else {
                         uid = ip->i_d.di_uid;
                 }
-                if ((mask & XFS_AT_GID) && XFS_IS_GQUOTA_ON(mp)) {
-                        gid = vap->va_gid;
+                if ((mask & ATTR_GID) && XFS_IS_GQUOTA_ON(mp)) {
+                        gid = iattr->ia_gid;
                         qflags |= XFS_QMOPT_GQUOTA;
                 }  else {
                         gid = ip->i_d.di_gid;
@@ -173,10 +149,10 @@ xfs_setattr(
          */
         tp = NULL;
         lock_flags = XFS_ILOCK_EXCL;
-        if (flags & ATTR_NOLOCK)
+        if (flags & XFS_ATTR_NOLOCK)
                 need_iolock = 0;
-        if (!(mask & XFS_AT_SIZE)) {
-                if ((mask != (XFS_AT_CTIME|XFS_AT_ATIME|XFS_AT_MTIME)) ||
+        if (!(mask & ATTR_SIZE)) {
+                if ((mask != (ATTR_CTIME|ATTR_ATIME|ATTR_MTIME)) ||
                     (mp->m_flags & XFS_MOUNT_WSYNC)) {
                         tp = xfs_trans_alloc(mp, XFS_TRANS_SETATTR_NOT_SIZE);
                         commit_flags = 0;
@@ -189,10 +165,10 @@ xfs_setattr(
                 }
         } else {
                 if (DM_EVENT_ENABLED(ip, DM_EVENT_TRUNCATE) &&
-                    !(flags & ATTR_DMI)) {
+                    !(flags & XFS_ATTR_DMI)) {
                         int dmflags = AT_DELAY_FLAG(flags) | DM_SEM_FLAG_WR;
                         code = XFS_SEND_DATA(mp, DM_EVENT_TRUNCATE, ip,
-                                vap->va_size, 0, dmflags, NULL);
+                                iattr->ia_size, 0, dmflags, NULL);
                         if (code) {
                                 lock_flags = 0;
                                 goto error_return;
@@ -212,7 +188,7 @@ xfs_setattr(
          * Only the owner or users with CAP_FOWNER
          * capability may do these things.
          */
-        if (mask & (XFS_AT_MODE|XFS_AT_UID|XFS_AT_GID)) {
+        if (mask & (ATTR_MODE|ATTR_UID|ATTR_GID)) {
                 /*
                  * CAP_FOWNER overrides the following restrictions:
                  *
@@ -236,21 +212,21 @@ xfs_setattr(
                  * IDs of the calling process shall match the group owner of
                  * the file when setting the set-group-ID bit on that file
                  */
-                if (mask & XFS_AT_MODE) {
+                if (mask & ATTR_MODE) {
                         mode_t m = 0;
 
-                        if ((vap->va_mode & S_ISUID) && !file_owner)
+                        if ((iattr->ia_mode & S_ISUID) && !file_owner)
                                 m |= S_ISUID;
-                        if ((vap->va_mode & S_ISGID) &&
+                        if ((iattr->ia_mode & S_ISGID) &&
                             !in_group_p((gid_t)ip->i_d.di_gid))
                                 m |= S_ISGID;
 #if 0
                         /* Linux allows this, Irix doesn't. */
-                        if ((vap->va_mode & S_ISVTX) && !S_ISDIR(ip->i_d.di_mode))
+                        if ((iattr->ia_mode & S_ISVTX) && !S_ISDIR(ip->i_d.di_mode))
                                 m |= S_ISVTX;
 #endif
                         if (m && !capable(CAP_FSETID))
-                                vap->va_mode &= ~m;
+                                iattr->ia_mode &= ~m;
                 }
         }
 
@@ -261,7 +237,7 @@ xfs_setattr(
          * and can change the group id only to a group of which he
          * or she is a member.
          */
-        if (mask & (XFS_AT_UID|XFS_AT_GID)) {
+        if (mask & (ATTR_UID|ATTR_GID)) {
                 /*
                  * These IDs could have changed since we last looked at them.
                  * But, we're assured that if the ownership did change
@@ -270,8 +246,8 @@ xfs_setattr(
                  */
                 iuid = ip->i_d.di_uid;
                 igid = ip->i_d.di_gid;
-                gid = (mask & XFS_AT_GID) ? vap->va_gid : igid;
-                uid = (mask & XFS_AT_UID) ? vap->va_uid : iuid;
+                gid = (mask & ATTR_GID) ? iattr->ia_gid : igid;
+                uid = (mask & ATTR_UID) ? iattr->ia_uid : iuid;
 
                 /*
                  * CAP_CHOWN overrides the following restrictions:
@@ -308,13 +284,13 @@ xfs_setattr(
         /*
          * Truncate file.  Must have write permission and not be a directory.
          */
-        if (mask & XFS_AT_SIZE) {
+        if (mask & ATTR_SIZE) {
                 /* Short circuit the truncate case for zero length files */
-                if ((vap->va_size == 0) &&
-                   (ip->i_size == 0) && (ip->i_d.di_nextents == 0)) {
+                if (iattr->ia_size == 0 &&
+                    ip->i_size == 0 && ip->i_d.di_nextents == 0) {
                         xfs_iunlock(ip, XFS_ILOCK_EXCL);
                         lock_flags &= ~XFS_ILOCK_EXCL;
-                        if (mask & XFS_AT_CTIME)
+                        if (mask & ATTR_CTIME)
                                 xfs_ichgtime(ip, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
                         code = 0;
                         goto error_return;
@@ -337,9 +313,9 @@ xfs_setattr(
         /*
          * Change file access or modified times.
          */
-        if (mask & (XFS_AT_ATIME|XFS_AT_MTIME)) {
+        if (mask & (ATTR_ATIME|ATTR_MTIME)) {
                 if (!file_owner) {
-                        if ((flags & ATTR_UTIME) &&
+                        if ((mask & (ATTR_MTIME_SET|ATTR_ATIME_SET)) &&
                             !capable(CAP_FOWNER)) {
                                 code = XFS_ERROR(EPERM);
                                 goto error_return;
@@ -349,23 +325,22 @@ xfs_setattr(
 
         /*
          * Now we can make the changes.  Before we join the inode
-         * to the transaction, if XFS_AT_SIZE is set then take care of
+         * to the transaction, if ATTR_SIZE is set then take care of
          * the part of the truncation that must be done without the
          * inode lock.  This needs to be done before joining the inode
          * to the transaction, because the inode cannot be unlocked
          * once it is a part of the transaction.
          */
-        if (mask & XFS_AT_SIZE) {
+        if (mask & ATTR_SIZE) {
                 code = 0;
-                if ((vap->va_size > ip->i_size) &&
-                    (flags & ATTR_NOSIZETOK) == 0) {
+                if (iattr->ia_size > ip->i_size) {
                         /*
                          * Do the first part of growing a file: zero any data
                          * in the last block that is beyond the old EOF.  We
                          * need to do this before the inode is joined to the
                          * transaction to modify the i_size.
                          */
-                        code = xfs_zero_eof(ip, vap->va_size, ip->i_size);
+                        code = xfs_zero_eof(ip, iattr->ia_size, ip->i_size);
                 }
                 xfs_iunlock(ip, XFS_ILOCK_EXCL);
 
@@ -382,10 +357,10 @@ xfs_setattr(
                  * not within the range we care about here.
                  */
                 if (!code &&
-                    (ip->i_size != ip->i_d.di_size) &&
-                    (vap->va_size > ip->i_d.di_size)) {
+                    ip->i_size != ip->i_d.di_size &&
+                    iattr->ia_size > ip->i_d.di_size) {
                         code = xfs_flush_pages(ip,
-                                        ip->i_d.di_size, vap->va_size,
+                                        ip->i_d.di_size, iattr->ia_size,
                                         XFS_B_ASYNC, FI_NONE);
                 }
 
@@ -393,7 +368,7 @@ xfs_setattr(
                 vn_iowait(ip);
 
                 if (!code)
-                        code = xfs_itruncate_data(ip, vap->va_size);
+                        code = xfs_itruncate_data(ip, iattr->ia_size);
                 if (code) {
                         ASSERT(tp == NULL);
                         lock_flags &= ~XFS_ILOCK_EXCL;
@@ -422,31 +397,30 @@ xfs_setattr(
         /*
          * Truncate file.  Must have write permission and not be a directory.
          */
-        if (mask & XFS_AT_SIZE) {
+        if (mask & ATTR_SIZE) {
                 /*
                  * Only change the c/mtime if we are changing the size
                  * or we are explicitly asked to change it. This handles
                  * the semantic difference between truncate() and ftruncate()
                  * as implemented in the VFS.
                  */
-                if (vap->va_size != ip->i_size || (mask & XFS_AT_CTIME))
+                if (iattr->ia_size != ip->i_size || (mask & ATTR_CTIME))
                         timeflags |= XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG;
 
-                if (vap->va_size > ip->i_size) {
-                        ip->i_d.di_size = vap->va_size;
-                        ip->i_size = vap->va_size;
-                        if (!(flags & ATTR_DMI))
+                if (iattr->ia_size > ip->i_size) {
+                        ip->i_d.di_size = iattr->ia_size;
+                        ip->i_size = iattr->ia_size;
+                        if (!(flags & XFS_ATTR_DMI))
                                 xfs_ichgtime(ip, XFS_ICHGTIME_CHG);
                         xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
-                } else if ((vap->va_size <= ip->i_size) ||
-                           ((vap->va_size == 0) && ip->i_d.di_nextents)) {
+                } else if (iattr->ia_size <= ip->i_size ||
+                           (iattr->ia_size == 0 && ip->i_d.di_nextents)) {
                         /*
                          * signal a sync transaction unless
                          * we're truncating an already unlinked
                          * file on a wsync filesystem
                          */
-                        code = xfs_itruncate_finish(&tp, ip,
-                                            (xfs_fsize_t)vap->va_size,
+                        code = xfs_itruncate_finish(&tp, ip, iattr->ia_size,
                                             XFS_DATA_FORK,
                                             ((ip->i_d.di_nlink != 0 ||
                                               !(mp->m_flags & XFS_MOUNT_WSYNC))
@@ -468,9 +442,9 @@ xfs_setattr(
         /*
          * Change file access modes.
          */
-        if (mask & XFS_AT_MODE) {
+        if (mask & ATTR_MODE) {
                 ip->i_d.di_mode &= S_IFMT;
-                ip->i_d.di_mode |= vap->va_mode & ~S_IFMT;
+                ip->i_d.di_mode |= iattr->ia_mode & ~S_IFMT;
 
                 xfs_trans_log_inode (tp, ip, XFS_ILOG_CORE);
                 timeflags |= XFS_ICHGTIME_CHG;
@@ -483,7 +457,7 @@ xfs_setattr(
          * and can change the group id only to a group of which he
          * or she is a member.
          */
-        if (mask & (XFS_AT_UID|XFS_AT_GID)) {
+        if (mask & (ATTR_UID|ATTR_GID)) {
                 /*
                  * CAP_FSETID overrides the following restrictions:
                  *
@@ -501,7 +475,7 @@ xfs_setattr(
                  */
                 if (iuid != uid) {
                         if (XFS_IS_UQUOTA_ON(mp)) {
-                                ASSERT(mask & XFS_AT_UID);
+                                ASSERT(mask & ATTR_UID);
                                 ASSERT(udqp);
                                 olddquot1 = XFS_QM_DQVOPCHOWN(mp, tp, ip,
                                                         &ip->i_udquot, udqp);
@@ -511,7 +485,7 @@ xfs_setattr(
                 if (igid != gid) {
                         if (XFS_IS_GQUOTA_ON(mp)) {
                                 ASSERT(!XFS_IS_PQUOTA_ON(mp));
-                                ASSERT(mask & XFS_AT_GID);
+                                ASSERT(mask & ATTR_GID);
                                 ASSERT(gdqp);
                                 olddquot2 = XFS_QM_DQVOPCHOWN(mp, tp, ip,
                                                         &ip->i_gdquot, gdqp);
@@ -527,31 +501,31 @@ xfs_setattr(
         /*
          * Change file access or modified times.
          */
-        if (mask & (XFS_AT_ATIME|XFS_AT_MTIME)) {
-                if (mask & XFS_AT_ATIME) {
-                        ip->i_d.di_atime.t_sec = vap->va_atime.tv_sec;
-                        ip->i_d.di_atime.t_nsec = vap->va_atime.tv_nsec;
+        if (mask & (ATTR_ATIME|ATTR_MTIME)) {
+                if (mask & ATTR_ATIME) {
+                        ip->i_d.di_atime.t_sec = iattr->ia_atime.tv_sec;
+                        ip->i_d.di_atime.t_nsec = iattr->ia_atime.tv_nsec;
                         ip->i_update_core = 1;
                         timeflags &= ~XFS_ICHGTIME_ACC;
                 }
-                if (mask & XFS_AT_MTIME) {
-                        ip->i_d.di_mtime.t_sec = vap->va_mtime.tv_sec;
-                        ip->i_d.di_mtime.t_nsec = vap->va_mtime.tv_nsec;
+                if (mask & ATTR_MTIME) {
+                        ip->i_d.di_mtime.t_sec = iattr->ia_mtime.tv_sec;
+                        ip->i_d.di_mtime.t_nsec = iattr->ia_mtime.tv_nsec;
                         timeflags &= ~XFS_ICHGTIME_MOD;
                         timeflags |= XFS_ICHGTIME_CHG;
                 }
-                if (tp && (flags & ATTR_UTIME))
+                if (tp && (mask & (ATTR_MTIME_SET|ATTR_ATIME_SET)))
                         xfs_trans_log_inode (tp, ip, XFS_ILOG_CORE);
         }
 
         /*
-         * Change file inode change time only if XFS_AT_CTIME set
+         * Change file inode change time only if ATTR_CTIME set
          * AND we have been called by a DMI function.
          */
 
-        if ( (flags & ATTR_DMI) && (mask & XFS_AT_CTIME) ) {
-                ip->i_d.di_ctime.t_sec = vap->va_ctime.tv_sec;
-                ip->i_d.di_ctime.t_nsec = vap->va_ctime.tv_nsec;
+        if ((flags & XFS_ATTR_DMI) && (mask & ATTR_CTIME)) {
+                ip->i_d.di_ctime.t_sec = iattr->ia_ctime.tv_sec;
+                ip->i_d.di_ctime.t_nsec = iattr->ia_ctime.tv_nsec;
                 ip->i_update_core = 1;
                 timeflags &= ~XFS_ICHGTIME_CHG;
         }
@@ -560,7 +534,7 @@ xfs_setattr(
          * Send out timestamp changes that need to be set to the
          * current time.  Not done when called by a DMI function.
          */
-        if (timeflags && !(flags & ATTR_DMI))
+        if (timeflags && !(flags & XFS_ATTR_DMI))
                 xfs_ichgtime(ip, timeflags);
 
         XFS_STATS_INC(xs_ig_attrchg);
@@ -598,7 +572,7 @@ xfs_setattr(
         }
 
         if (DM_EVENT_ENABLED(ip, DM_EVENT_ATTRIBUTE) &&
-            !(flags & ATTR_DMI)) {
+            !(flags & XFS_ATTR_DMI)) {
                 (void) XFS_SEND_NAMESP(mp, DM_EVENT_ATTRIBUTE, ip, DM_RIGHT_NULL,
                                         NULL, DM_RIGHT_NULL, NULL, NULL,
                                         0, 0, AT_DELAY_FLAG(flags));
@@ -3113,7 +3087,7 @@ xfs_alloc_file_space(
 
         /*      Generate a DMAPI event if needed.       */
         if (alloc_type != 0 && offset < ip->i_size &&
-                        (attr_flags&ATTR_DMI) == 0  &&
+                        (attr_flags & XFS_ATTR_DMI) == 0  &&
                         DM_EVENT_ENABLED(ip, DM_EVENT_WRITE)) {
                 xfs_off_t           end_dmi_offset;
 
@@ -3227,7 +3201,7 @@ retry:
                 allocatesize_fsb -= allocated_fsb;
         }
 dmapi_enospc_check:
-        if (error == ENOSPC && (attr_flags & ATTR_DMI) == 0 &&
+        if (error == ENOSPC && (attr_flags & XFS_ATTR_DMI) == 0 &&
             DM_EVENT_ENABLED(ip, DM_EVENT_NOSPACE)) {
                 error = XFS_SEND_NAMESP(mp, DM_EVENT_NOSPACE,
                                 ip, DM_RIGHT_NULL,
@@ -3374,7 +3348,7 @@ xfs_free_file_space(
         end_dmi_offset = offset + len;
         endoffset_fsb = XFS_B_TO_FSBT(mp, end_dmi_offset);
 
-        if (offset < ip->i_size && (attr_flags & ATTR_DMI) == 0 &&
+        if (offset < ip->i_size && (attr_flags & XFS_ATTR_DMI) == 0 &&
             DM_EVENT_ENABLED(ip, DM_EVENT_WRITE)) {
                 if (end_dmi_offset > ip->i_size)
                         end_dmi_offset = ip->i_size;
@@ -3385,7 +3359,7 @@ xfs_free_file_space(
                         return error;
         }
 
-        if (attr_flags & ATTR_NOLOCK)
+        if (attr_flags & XFS_ATTR_NOLOCK)
                 need_iolock = 0;
         if (need_iolock) {
                 xfs_ilock(ip, XFS_IOLOCK_EXCL);
@@ -3562,7 +3536,7 @@ xfs_change_file_space(
         xfs_off_t       startoffset;
         xfs_off_t       llen;
         xfs_trans_t     *tp;
-        bhv_vattr_t     va;
+        struct iattr    iattr;
 
         xfs_itrace_entry(ip);
 
@@ -3636,10 +3610,10 @@ xfs_change_file_space(
                                 break;
                 }
 
-                va.va_mask = XFS_AT_SIZE;
-                va.va_size = startoffset;
+                iattr.ia_valid = ATTR_SIZE;
+                iattr.ia_size = startoffset;
 
-                error = xfs_setattr(ip, &va, attr_flags, credp);
+                error = xfs_setattr(ip, &iattr, attr_flags, credp);
 
                 if (error)
                         return error;
@@ -3669,7 +3643,7 @@ xfs_change_file_space(
         xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
         xfs_trans_ihold(tp, ip);
 
-        if ((attr_flags & ATTR_DMI) == 0) {
+        if ((attr_flags & XFS_ATTR_DMI) == 0) {
                 ip->i_d.di_mode &= ~S_ISUID;
 
                 /*