#include "xfs.h"
#include "xfs_fs.h"
+#include "xfs_shared.h"
#include "xfs_format.h"
-#include "xfs_log.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
#include "xfs_inum.h"
-#include "xfs_trans.h"
-#include "xfs_trans_space.h"
-#include "xfs_trans_priv.h"
#include "xfs_sb.h"
#include "xfs_ag.h"
#include "xfs_mount.h"
+#include "xfs_inode.h"
+#include "xfs_da_format.h"
#include "xfs_da_btree.h"
-#include "xfs_dir2_format.h"
#include "xfs_dir2.h"
-#include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
#include "xfs_attr_sf.h"
#include "xfs_attr.h"
-#include "xfs_dinode.h"
-#include "xfs_inode.h"
+#include "xfs_trans_space.h"
+#include "xfs_trans.h"
#include "xfs_buf_item.h"
#include "xfs_inode_item.h"
-#include "xfs_btree.h"
-#include "xfs_alloc.h"
#include "xfs_ialloc.h"
#include "xfs_bmap.h"
#include "xfs_bmap_util.h"
#include "xfs_error.h"
#include "xfs_quota.h"
+#include "xfs_dinode.h"
#include "xfs_filestream.h"
#include "xfs_cksum.h"
#include "xfs_trace.h"
#include "xfs_icache.h"
#include "xfs_symlink.h"
+#include "xfs_trans_priv.h"
+#include "xfs_log.h"
+#include "xfs_bmap_btree.h"
kmem_zone_t *xfs_inode_zone;
return 0;
}
+/*
+ * xfs_inactive_truncate
+ *
+ * Called to perform a truncate when an inode becomes unlinked.
+ */
+STATIC int
+xfs_inactive_truncate(
+ struct xfs_inode *ip)
+{
+ struct xfs_mount *mp = ip->i_mount;
+ struct xfs_trans *tp;
+ int error;
+
+ tp = xfs_trans_alloc(mp, XFS_TRANS_INACTIVE);
+ error = xfs_trans_reserve(tp, &M_RES(mp)->tr_itruncate, 0, 0);
+ if (error) {
+ ASSERT(XFS_FORCED_SHUTDOWN(mp));
+ xfs_trans_cancel(tp, 0);
+ return error;
+ }
+
+ xfs_ilock(ip, XFS_ILOCK_EXCL);
+ xfs_trans_ijoin(tp, ip, 0);
+
+ /*
+ * Log the inode size first to prevent stale data exposure in the event
+ * of a system crash before the truncate completes. See the related
+ * comment in xfs_setattr_size() for details.
+ */
+ ip->i_d.di_size = 0;
+ xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
+
+ error = xfs_itruncate_extents(&tp, ip, XFS_DATA_FORK, 0);
+ if (error)
+ goto error_trans_cancel;
+
+ ASSERT(ip->i_d.di_nextents == 0);
+
+ error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES);
+ if (error)
+ goto error_unlock;
+
+ xfs_iunlock(ip, XFS_ILOCK_EXCL);
+ return 0;
+
+error_trans_cancel:
+ xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES | XFS_TRANS_ABORT);
+error_unlock:
+ xfs_iunlock(ip, XFS_ILOCK_EXCL);
+ return error;
+}
+
+/*
+ * xfs_inactive_ifree()
+ *
+ * Perform the inode free when an inode is unlinked.
+ */
+STATIC int
+xfs_inactive_ifree(
+ struct xfs_inode *ip)
+{
+ xfs_bmap_free_t free_list;
+ xfs_fsblock_t first_block;
+ int committed;
+ struct xfs_mount *mp = ip->i_mount;
+ struct xfs_trans *tp;
+ int error;
+
+ tp = xfs_trans_alloc(mp, XFS_TRANS_INACTIVE);
+ error = xfs_trans_reserve(tp, &M_RES(mp)->tr_ifree, 0, 0);
+ if (error) {
+ ASSERT(XFS_FORCED_SHUTDOWN(mp));
+ xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES);
+ return error;
+ }
+
+ xfs_ilock(ip, XFS_ILOCK_EXCL);
+ xfs_trans_ijoin(tp, ip, 0);
+
+ xfs_bmap_init(&free_list, &first_block);
+ error = xfs_ifree(tp, ip, &free_list);
+ if (error) {
+ /*
+ * If we fail to free the inode, shut down. The cancel
+ * might do that, we need to make sure. Otherwise the
+ * inode might be lost for a long time or forever.
+ */
+ if (!XFS_FORCED_SHUTDOWN(mp)) {
+ xfs_notice(mp, "%s: xfs_ifree returned error %d",
+ __func__, error);
+ xfs_force_shutdown(mp, SHUTDOWN_META_IO_ERROR);
+ }
+ xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES|XFS_TRANS_ABORT);
+ xfs_iunlock(ip, XFS_ILOCK_EXCL);
+ return error;
+ }
+
+ /*
+ * Credit the quota account(s). The inode is gone.
+ */
+ xfs_trans_mod_dquot_byino(tp, ip, XFS_TRANS_DQ_ICOUNT, -1);
+
+ /*
+ * Just ignore errors at this point. There is nothing we can
+ * do except to try to keep going. Make sure it's not a silent
+ * error.
+ */
+ error = xfs_bmap_finish(&tp, &free_list, &committed);
+ if (error)
+ xfs_notice(mp, "%s: xfs_bmap_finish returned error %d",
+ __func__, error);
+ error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES);
+ if (error)
+ xfs_notice(mp, "%s: xfs_trans_commit returned error %d",
+ __func__, error);
+
+ xfs_iunlock(ip, XFS_ILOCK_EXCL);
+ return 0;
+}
+
/*
* xfs_inactive
*
* now be truncated. Also, we clear all of the read-ahead state
* kept for the inode here since the file is now closed.
*/
-int
+void
xfs_inactive(
xfs_inode_t *ip)
{
- xfs_bmap_free_t free_list;
- xfs_fsblock_t first_block;
- int committed;
- struct xfs_trans *tp;
struct xfs_mount *mp;
- struct xfs_trans_res *resp;
int error;
int truncate = 0;
* If the inode is already free, then there can be nothing
* to clean up here.
*/
- if (ip->i_d.di_mode == 0 || is_bad_inode(VFS_I(ip))) {
+ if (ip->i_d.di_mode == 0) {
ASSERT(ip->i_df.if_real_bytes == 0);
ASSERT(ip->i_df.if_broot_bytes == 0);
- return VN_INACTIVE_CACHE;
+ return;
}
mp = ip->i_mount;
- error = 0;
-
/* If this is a read-only mount, don't do this (would generate I/O) */
if (mp->m_flags & XFS_MOUNT_RDONLY)
- goto out;
+ return;
if (ip->i_d.di_nlink != 0) {
/*
* cache. Post-eof blocks must be freed, lest we end up with
* broken free space accounting.
*/
- if (xfs_can_free_eofblocks(ip, true)) {
- error = xfs_free_eofblocks(mp, ip, false);
- if (error)
- return VN_INACTIVE_CACHE;
- }
- goto out;
+ if (xfs_can_free_eofblocks(ip, true))
+ xfs_free_eofblocks(mp, ip, false);
+
+ return;
}
if (S_ISREG(ip->i_d.di_mode) &&
error = xfs_qm_dqattach(ip, 0);
if (error)
- return VN_INACTIVE_CACHE;
-
- tp = xfs_trans_alloc(mp, XFS_TRANS_INACTIVE);
- resp = (truncate || S_ISLNK(ip->i_d.di_mode)) ?
- &M_RES(mp)->tr_itruncate : &M_RES(mp)->tr_ifree;
+ return;
- error = xfs_trans_reserve(tp, resp, 0, 0);
- if (error) {
- ASSERT(XFS_FORCED_SHUTDOWN(mp));
- xfs_trans_cancel(tp, 0);
- return VN_INACTIVE_CACHE;
- }
-
- xfs_ilock(ip, XFS_ILOCK_EXCL);
- xfs_trans_ijoin(tp, ip, 0);
-
- if (S_ISLNK(ip->i_d.di_mode)) {
- error = xfs_inactive_symlink(ip, &tp);
- if (error)
- goto out_cancel;
- } else if (truncate) {
- ip->i_d.di_size = 0;
- xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
-
- error = xfs_itruncate_extents(&tp, ip, XFS_DATA_FORK, 0);
- if (error)
- goto out_cancel;
-
- ASSERT(ip->i_d.di_nextents == 0);
- }
+ if (S_ISLNK(ip->i_d.di_mode))
+ error = xfs_inactive_symlink(ip);
+ else if (truncate)
+ error = xfs_inactive_truncate(ip);
+ if (error)
+ return;
/*
* If there are attributes associated with the file then blow them away
if (ip->i_d.di_anextents > 0) {
ASSERT(ip->i_d.di_forkoff != 0);
- error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES);
- if (error)
- goto out_unlock;
-
- xfs_iunlock(ip, XFS_ILOCK_EXCL);
-
error = xfs_attr_inactive(ip);
if (error)
- goto out;
-
- tp = xfs_trans_alloc(mp, XFS_TRANS_INACTIVE);
- error = xfs_trans_reserve(tp, &M_RES(mp)->tr_ifree, 0, 0);
- if (error) {
- xfs_trans_cancel(tp, 0);
- goto out;
- }
-
- xfs_ilock(ip, XFS_ILOCK_EXCL);
- xfs_trans_ijoin(tp, ip, 0);
+ return;
}
if (ip->i_afp)
/*
* Free the inode.
*/
- xfs_bmap_init(&free_list, &first_block);
- error = xfs_ifree(tp, ip, &free_list);
- if (error) {
- /*
- * If we fail to free the inode, shut down. The cancel
- * might do that, we need to make sure. Otherwise the
- * inode might be lost for a long time or forever.
- */
- if (!XFS_FORCED_SHUTDOWN(mp)) {
- xfs_notice(mp, "%s: xfs_ifree returned error %d",
- __func__, error);
- xfs_force_shutdown(mp, SHUTDOWN_META_IO_ERROR);
- }
- xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES|XFS_TRANS_ABORT);
- } else {
- /*
- * Credit the quota account(s). The inode is gone.
- */
- xfs_trans_mod_dquot_byino(tp, ip, XFS_TRANS_DQ_ICOUNT, -1);
-
- /*
- * Just ignore errors at this point. There is nothing we can
- * do except to try to keep going. Make sure it's not a silent
- * error.
- */
- error = xfs_bmap_finish(&tp, &free_list, &committed);
- if (error)
- xfs_notice(mp, "%s: xfs_bmap_finish returned error %d",
- __func__, error);
- error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES);
- if (error)
- xfs_notice(mp, "%s: xfs_trans_commit returned error %d",
- __func__, error);
- }
+ error = xfs_inactive_ifree(ip);
+ if (error)
+ return;
/*
* Release the dquots held by inode, if any.
*/
xfs_qm_dqdetach(ip);
-out_unlock:
- xfs_iunlock(ip, XFS_ILOCK_EXCL);
-out:
- return VN_INACTIVE_CACHE;
-out_cancel:
- xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES | XFS_TRANS_ABORT);
- goto out_unlock;
}
/*
projects / karo-tx-linux.git / blobdiff