[PATCH] fs/ntfs: Conversion to generic boolean
[deliverable/linux.git] / fs / xfs / xfs_inode.c
index 848783ba5650c36cd38186d2c1e69f3b330890d5..c27d7d495aa0f498ade09aa6a5db5a67a8fa01ce 100644 (file)
 #include "xfs_trans_priv.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
-#include "xfs_dir.h"
 #include "xfs_dir2.h"
 #include "xfs_dmapi.h"
 #include "xfs_mount.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_alloc_btree.h"
 #include "xfs_ialloc_btree.h"
-#include "xfs_dir_sf.h"
 #include "xfs_dir2_sf.h"
 #include "xfs_attr_sf.h"
 #include "xfs_dinode.h"
@@ -256,13 +254,11 @@ xfs_itobp(
        xfs_daddr_t     bno,
        uint            imap_flags)
 {
+       xfs_imap_t      imap;
        xfs_buf_t       *bp;
        int             error;
-       xfs_imap_t      imap;
-#ifdef __KERNEL__
        int             i;
        int             ni;
-#endif
 
        if (ip->i_blkno == (xfs_daddr_t)0) {
                /*
@@ -319,7 +315,6 @@ xfs_itobp(
         */
        error = xfs_trans_read_buf(mp, tp, mp->m_ddev_targp, imap.im_blkno,
                                   (int)imap.im_len, XFS_BUF_LOCK, &bp);
-
        if (error) {
 #ifdef DEBUG
                xfs_fs_cmn_err(CE_ALERT, mp, "xfs_itobp: "
@@ -330,17 +325,20 @@ xfs_itobp(
 #endif /* DEBUG */
                return error;
        }
-#ifdef __KERNEL__
+
        /*
         * Validate the magic number and version of every inode in the buffer
         * (if DEBUG kernel) or the first inode in the buffer, otherwise.
+        * No validation is done here in userspace (xfs_repair).
         */
-#ifdef DEBUG
-       ni = (imap_flags & XFS_IMAP_BULKSTAT) ? 0 :
-               (BBTOB(imap.im_len) >> mp->m_sb.sb_inodelog);
-#else
-       ni = (imap_flags & XFS_IMAP_BULKSTAT) ? 0 : 1;
+#if !defined(__KERNEL__)
+       ni = 0;
+#elif defined(DEBUG)
+       ni = BBTOB(imap.im_len) >> mp->m_sb.sb_inodelog;
+#else  /* usual case */
+       ni = 1;
 #endif
+
        for (i = 0; i < ni; i++) {
                int             di_ok;
                xfs_dinode_t    *dip;
@@ -349,11 +347,17 @@ xfs_itobp(
                                        (i << mp->m_sb.sb_inodelog));
                di_ok = INT_GET(dip->di_core.di_magic, ARCH_CONVERT) == XFS_DINODE_MAGIC &&
                            XFS_DINODE_GOOD_VERSION(INT_GET(dip->di_core.di_version, ARCH_CONVERT));
-               if (unlikely(XFS_TEST_ERROR(!di_ok, mp, XFS_ERRTAG_ITOBP_INOTOBP,
-                                XFS_RANDOM_ITOBP_INOTOBP))) {
+               if (unlikely(XFS_TEST_ERROR(!di_ok, mp,
+                                               XFS_ERRTAG_ITOBP_INOTOBP,
+                                               XFS_RANDOM_ITOBP_INOTOBP))) {
+                       if (imap_flags & XFS_IMAP_BULKSTAT) {
+                               xfs_trans_brelse(tp, bp);
+                               return XFS_ERROR(EINVAL);
+                       }
 #ifdef DEBUG
-                       cmn_err(CE_ALERT, "Device %s - bad inode magic/vsn "
-                                         "daddr %lld #%d (magic=%x)",
+                       cmn_err(CE_ALERT,
+                                       "Device %s - bad inode magic/vsn "
+                                       "daddr %lld #%d (magic=%x)",
                                XFS_BUFTARG_NAME(mp->m_ddev_targp),
                                (unsigned long long)imap.im_blkno, i,
                                INT_GET(dip->di_core.di_magic, ARCH_CONVERT));
@@ -364,7 +368,6 @@ xfs_itobp(
                        return XFS_ERROR(EFSCORRUPTED);
                }
        }
-#endif /* __KERNEL__ */
 
        xfs_inobp_check(mp, bp);
 
@@ -783,7 +786,6 @@ xfs_xlate_dinode_core(
 
 STATIC uint
 _xfs_dic2xflags(
-       xfs_dinode_core_t       *dic,
        __uint16_t              di_flags)
 {
        uint                    flags = 0;
@@ -826,16 +828,16 @@ xfs_ip2xflags(
 {
        xfs_dinode_core_t       *dic = &ip->i_d;
 
-       return _xfs_dic2xflags(dic, dic->di_flags) |
-               (XFS_CFORK_Q(dic) ? XFS_XFLAG_HASATTR : 0);
+       return _xfs_dic2xflags(dic->di_flags) |
+                               (XFS_CFORK_Q(dic) ? XFS_XFLAG_HASATTR : 0);
 }
 
 uint
 xfs_dic2xflags(
        xfs_dinode_core_t       *dic)
 {
-       return _xfs_dic2xflags(dic, INT_GET(dic->di_flags, ARCH_CONVERT)) |
-               (XFS_CFORK_Q_DISK(dic) ? XFS_XFLAG_HASATTR : 0);
+       return _xfs_dic2xflags(INT_GET(dic->di_flags, ARCH_CONVERT)) |
+                               (XFS_CFORK_Q_DISK(dic) ? XFS_XFLAG_HASATTR : 0);
 }
 
 /*
@@ -852,7 +854,8 @@ xfs_iread(
        xfs_trans_t     *tp,
        xfs_ino_t       ino,
        xfs_inode_t     **ipp,
-       xfs_daddr_t     bno)
+       xfs_daddr_t     bno,
+       uint            imap_flags)
 {
        xfs_buf_t       *bp;
        xfs_dinode_t    *dip;
@@ -864,6 +867,7 @@ xfs_iread(
        ip = kmem_zone_zalloc(xfs_inode_zone, KM_SLEEP);
        ip->i_ino = ino;
        ip->i_mount = mp;
+       spin_lock_init(&ip->i_flags_lock);
 
        /*
         * Get pointer's to the on-disk inode and the buffer containing it.
@@ -872,7 +876,7 @@ xfs_iread(
         * return NULL as well.  Set i_blkno to 0 so that xfs_itobp() will
         * know that this is a new incore inode.
         */
-       error = xfs_itobp(mp, tp, ip, &dip, &bp, bno, 0);
+       error = xfs_itobp(mp, tp, ip, &dip, &bp, bno, imap_flags);
        if (error) {
                kmem_zone_free(xfs_inode_zone, ip);
                return error;
@@ -1111,7 +1115,7 @@ xfs_ialloc(
         * to prevent others from looking at until we're done.
         */
        error = xfs_trans_iget(tp->t_mountp, tp, ino,
-                       IGET_CREATE, XFS_ILOCK_EXCL, &ip);
+                               XFS_IGET_CREATE, XFS_ILOCK_EXCL, &ip);
        if (error != 0) {
                return error;
        }
@@ -1962,9 +1966,9 @@ xfs_iunlink_remove(
        xfs_agino_t     agino;
        xfs_agino_t     next_agino;
        xfs_buf_t       *last_ibp;
-       xfs_dinode_t    *last_dip;
+       xfs_dinode_t    *last_dip = NULL;
        short           bucket_index;
-       int             offset, last_offset;
+       int             offset, last_offset = 0;
        int             error;
        int             agi_ok;
 
@@ -2211,7 +2215,9 @@ xfs_ifree_cluster(
 
                        if (ip == free_ip) {
                                if (xfs_iflock_nowait(ip)) {
+                                       spin_lock(&ip->i_flags_lock);
                                        ip->i_flags |= XFS_ISTALE;
+                                       spin_unlock(&ip->i_flags_lock);
 
                                        if (xfs_inode_clean(ip)) {
                                                xfs_ifunlock(ip);
@@ -2225,7 +2231,9 @@ xfs_ifree_cluster(
 
                        if (xfs_ilock_nowait(ip, XFS_ILOCK_EXCL)) {
                                if (xfs_iflock_nowait(ip)) {
+                                       spin_lock(&ip->i_flags_lock);
                                        ip->i_flags |= XFS_ISTALE;
+                                       spin_unlock(&ip->i_flags_lock);
 
                                        if (xfs_inode_clean(ip)) {
                                                xfs_ifunlock(ip);
@@ -2255,7 +2263,9 @@ xfs_ifree_cluster(
                                AIL_LOCK(mp,s);
                                iip->ili_flush_lsn = iip->ili_item.li_lsn;
                                AIL_UNLOCK(mp, s);
+                               spin_lock(&iip->ili_inode->i_flags_lock);
                                iip->ili_inode->i_flags |= XFS_ISTALE;
+                               spin_unlock(&iip->ili_inode->i_flags_lock);
                                pre_flushed++;
                        }
                        lip = lip->li_bio_list;
@@ -2751,19 +2761,29 @@ xfs_iunpin(
                 * call as the inode reclaim may be blocked waiting for
                 * the inode to become unpinned.
                 */
+               struct inode *inode = NULL;
+
+               spin_lock(&ip->i_flags_lock);
                if (!(ip->i_flags & (XFS_IRECLAIM|XFS_IRECLAIMABLE))) {
                        bhv_vnode_t     *vp = XFS_ITOV_NULL(ip);
 
                        /* make sync come back and flush this inode */
                        if (vp) {
-                               struct inode    *inode = vn_to_inode(vp);
+                               inode = vn_to_inode(vp);
 
                                if (!(inode->i_state &
-                                               (I_NEW|I_FREEING|I_CLEAR)))
-                                       mark_inode_dirty_sync(inode);
+                                               (I_NEW|I_FREEING|I_CLEAR))) {
+                                       inode = igrab(inode);
+                                       if (inode)
+                                               mark_inode_dirty_sync(inode);
+                               } else
+                                       inode = NULL;
                        }
                }
+               spin_unlock(&ip->i_flags_lock);
                wake_up(&ip->i_ipin_wait);
+               if (inode)
+                       iput(inode);
        }
 }
 
@@ -2924,13 +2944,6 @@ xfs_iflush_fork(
                        ASSERT(ifp->if_bytes <= XFS_IFORK_SIZE(ip, whichfork));
                        memcpy(cp, ifp->if_u1.if_data, ifp->if_bytes);
                }
-               if (whichfork == XFS_DATA_FORK) {
-                       if (unlikely(XFS_DIR_SHORTFORM_VALIDATE_ONDISK(mp, dip))) {
-                               XFS_ERROR_REPORT("xfs_iflush_fork",
-                                                XFS_ERRLEVEL_LOW, mp);
-                               return XFS_ERROR(EFSCORRUPTED);
-                       }
-               }
                break;
 
        case XFS_DINODE_FMT_EXTENTS:
@@ -3014,7 +3027,7 @@ xfs_iflush(
        XFS_STATS_INC(xs_iflush_count);
 
        ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE|MR_ACCESS));
-       ASSERT(valusema(&ip->i_flock) <= 0);
+       ASSERT(issemalocked(&(ip->i_flock)));
        ASSERT(ip->i_d.di_format != XFS_DINODE_FMT_BTREE ||
               ip->i_d.di_nextents > ip->i_df.if_ext_max);
 
@@ -3272,7 +3285,7 @@ xfs_iflush_int(
        SPLDECL(s);
 
        ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE|MR_ACCESS));
-       ASSERT(valusema(&ip->i_flock) <= 0);
+       ASSERT(issemalocked(&(ip->i_flock)));
        ASSERT(ip->i_d.di_format != XFS_DINODE_FMT_BTREE ||
               ip->i_d.di_nextents > ip->i_df.if_ext_max);
 
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