From 7989cb8ef5dbc1411d3be48218c7b25ef6e71699 Mon Sep 17 00:00:00 2001 From: David Chinner Date: Sat, 10 Feb 2007 18:34:56 +1100 Subject: [XFS] Keep stack usage down for 4k stacks by using noinline. gcc-4.1 and more recent aggressively inline static functions which increases XFS stack usage by ~15% in critical paths. Prevent this from occurring by adding noinline to the STATIC definition. Also uninline some functions that are too large to be inlined and were causing problems with CONFIG_FORCED_INLINING=y. Finally, clean up all the different users of inline, __inline and __inline__ and put them under one STATIC_INLINE macro. For debug kernels the STATIC_INLINE macro uninlines those functions. SGI-PV: 957159 SGI-Modid: xfs-linux-melb:xfs-kern:27585a Signed-off-by: David Chinner Signed-off-by: David Chatterton Signed-off-by: Tim Shimmin --- fs/xfs/xfs_inode.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'fs/xfs/xfs_inode.c') diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c index 44dfac521285..cd518581a3bb 100644 --- a/fs/xfs/xfs_inode.c +++ b/fs/xfs/xfs_inode.c @@ -2125,7 +2125,7 @@ xfs_iunlink_remove( return 0; } -static __inline__ int xfs_inode_clean(xfs_inode_t *ip) +STATIC_INLINE int xfs_inode_clean(xfs_inode_t *ip) { return (((ip->i_itemp == NULL) || !(ip->i_itemp->ili_format.ilf_fields & XFS_ILOG_ALL)) && -- cgit v1.2.2 From f74eaf59b36c0ad01f416b567f89c737bbf82bae Mon Sep 17 00:00:00 2001 From: David Chinner Date: Sat, 10 Feb 2007 18:36:04 +1100 Subject: [XFS] Fix inode log item use-after-free on forced shutdown SGI-PV: 959388 SGI-Modid: xfs-linux-melb:xfs-kern:27805a Signed-off-by: David Chinner Signed-off-by: Lachlan McIlroy Signed-off-by: Tim Shimmin --- fs/xfs/xfs_inode.c | 22 ++++++++++++++++++---- 1 file changed, 18 insertions(+), 4 deletions(-) (limited to 'fs/xfs/xfs_inode.c') diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c index cd518581a3bb..e42418f92215 100644 --- a/fs/xfs/xfs_inode.c +++ b/fs/xfs/xfs_inode.c @@ -2707,10 +2707,24 @@ xfs_idestroy( ktrace_free(ip->i_dir_trace); #endif if (ip->i_itemp) { - /* XXXdpd should be able to assert this but shutdown - * is leaving the AIL behind. */ - ASSERT(((ip->i_itemp->ili_item.li_flags & XFS_LI_IN_AIL) == 0) || - XFS_FORCED_SHUTDOWN(ip->i_mount)); + /* + * Only if we are shutting down the fs will we see an + * inode still in the AIL. If it is there, we should remove + * it to prevent a use-after-free from occurring. + */ + xfs_mount_t *mp = ip->i_mount; + xfs_log_item_t *lip = &ip->i_itemp->ili_item; + int s; + + ASSERT(((lip->li_flags & XFS_LI_IN_AIL) == 0) || + XFS_FORCED_SHUTDOWN(ip->i_mount)); + if (lip->li_flags & XFS_LI_IN_AIL) { + AIL_LOCK(mp, s); + if (lip->li_flags & XFS_LI_IN_AIL) + xfs_trans_delete_ail(mp, lip, s); + else + AIL_UNLOCK(mp, s); + } xfs_inode_item_destroy(ip); } kmem_zone_free(xfs_inode_zone, ip); -- cgit v1.2.2 From 681601613759accffd8e8ddbc6f942eba7ecbfe5 Mon Sep 17 00:00:00 2001 From: Lachlan McIlroy Date: Sat, 10 Feb 2007 18:36:47 +1100 Subject: [XFS] Fix callers of xfs_iozero() to zero the correct range. The problem is the two callers of xfs_iozero() are rounding out the range to be zeroed to the end of a fsb and in some cases this extends past the new eof. The call to commit_write() in xfs_iozero() will cause the Linux inode's file size to be set too high. SGI-PV: 960788 SGI-Modid: xfs-linux-melb:xfs-kern:28013a Signed-off-by: Lachlan McIlroy Signed-off-by: David Chinner Signed-off-by: Tim Shimmin --- fs/xfs/xfs_inode.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'fs/xfs/xfs_inode.c') diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c index e42418f92215..295577d67ea0 100644 --- a/fs/xfs/xfs_inode.c +++ b/fs/xfs/xfs_inode.c @@ -1810,7 +1810,7 @@ xfs_igrow_start( * and any blocks between the old and new file sizes. */ error = xfs_zero_eof(XFS_ITOV(ip), &ip->i_iocore, new_size, - ip->i_d.di_size, new_size); + ip->i_d.di_size); return error; } -- cgit v1.2.2 From f7c99b6fc7b3791cd24e0763cd4967d744c164a3 Mon Sep 17 00:00:00 2001 From: Eric Sandeen Date: Sat, 10 Feb 2007 18:37:16 +1100 Subject: [XFS] Remove unused argument to xfs_bmap_finish The firstblock argument to xfs_bmap_finish is not used by that function. Remove it and cleanup the code a bit. Patch provided by Eric Sandeen. SGI-PV: 960196 SGI-Modid: xfs-linux-melb:xfs-kern:28034a Signed-off-by: Eric Sandeen Signed-off-by: David Chinner Signed-off-by: Tim Shimmin --- fs/xfs/xfs_inode.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'fs/xfs/xfs_inode.c') diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c index 295577d67ea0..7efcf2545cfa 100644 --- a/fs/xfs/xfs_inode.c +++ b/fs/xfs/xfs_inode.c @@ -1699,8 +1699,7 @@ xfs_itruncate_finish( * Duplicate the transaction that has the permanent * reservation and commit the old transaction. */ - error = xfs_bmap_finish(tp, &free_list, first_block, - &committed); + error = xfs_bmap_finish(tp, &free_list, &committed); ntp = *tp; if (error) { /* -- cgit v1.2.2 From 7bc5306d74922d9b14f507e1164d8dd852a98ad3 Mon Sep 17 00:00:00 2001 From: Eric Sandeen Date: Sat, 10 Feb 2007 18:37:28 +1100 Subject: [XFS] Remove unused header files for MAC and CAP checking functionality. xfs_mac.h and xfs_cap.h provide definitions and macros that aren't used anywhere in XFS at all. They are left-overs from "to be implement at some point in the future" functionality that Irix XFS has. If this functionality ever goes into Linux, it will be provided at a different layer, most likely through the security hooks in the kernel so we will never need this functionality in XFS. Patch provided by Eric Sandeen (sandeen@sandeen.net). SGI-PV: 960895 SGI-Modid: xfs-linux-melb:xfs-kern:28036a Signed-off-by: Eric Sandeen Signed-off-by: David Chinner Signed-off-by: Tim Shimmin --- fs/xfs/xfs_inode.c | 1 - 1 file changed, 1 deletion(-) (limited to 'fs/xfs/xfs_inode.c') diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c index 7efcf2545cfa..3da9829c19d5 100644 --- a/fs/xfs/xfs_inode.c +++ b/fs/xfs/xfs_inode.c @@ -47,7 +47,6 @@ #include "xfs_utils.h" #include "xfs_dir2_trace.h" #include "xfs_quota.h" -#include "xfs_mac.h" #include "xfs_acl.h" -- cgit v1.2.2