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Add patch to fix GFS2 regression (from Bob Peterson)

This commit is contained in:
Josh Boyer 2014-10-07 14:10:35 -04:00
parent bac843a124
commit b54d65c17a
3 changed files with 107 additions and 4 deletions
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90
GFS2-Make-rename-not-save-dirent-location.patch Normal file
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@ -0,0 +1,90 @@
From: Bob Peterson <rpeterso@redhat.com>
Date: Mon, 29 Sep 2014 08:52:04 -0400
Subject: [PATCH] GFS2: Make rename not save dirent location
This patch fixes a regression in the patch "GFS2: Remember directory
insert point", commit 2b47dad866d04f14c328f888ba5406057b8c7d33.
The problem had to do with the rename function: The function found
space for the new dirent, and remembered that location. But then the
old dirent was removed, which often moved the eligible location for
the renamed dirent. Putting the new dirent at the saved location
caused file system corruption.
This patch adds a new "save_loc" variable to struct gfs2_diradd.
If 1, the dirent location is saved. If 0, the dirent location is not
saved and the buffer_head is released as per previous behavior.
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
---
fs/gfs2/dir.c | 9 +++++++--
fs/gfs2/dir.h | 1 +
fs/gfs2/inode.c | 6 +++---
3 files changed, 11 insertions(+), 5 deletions(-)
diff --git a/fs/gfs2/dir.c b/fs/gfs2/dir.c
index 1a349f9a9685..5d4261ff5d23 100644
--- a/fs/gfs2/dir.c
+++ b/fs/gfs2/dir.c
@@ -2100,8 +2100,13 @@ int gfs2_diradd_alloc_required(struct inode *inode, const struct qstr *name,
}
if (IS_ERR(dent))
return PTR_ERR(dent);
- da->bh = bh;
- da->dent = dent;
+
+ if (da->save_loc) {
+ da->bh = bh;
+ da->dent = dent;
+ } else {
+ brelse(bh);
+ }
return 0;
}
diff --git a/fs/gfs2/dir.h b/fs/gfs2/dir.h
index 126c65dda028..e1b309c24dab 100644
--- a/fs/gfs2/dir.h
+++ b/fs/gfs2/dir.h
@@ -23,6 +23,7 @@ struct gfs2_diradd {
unsigned nr_blocks;
struct gfs2_dirent *dent;
struct buffer_head *bh;
+ int save_loc;
};
extern struct inode *gfs2_dir_search(struct inode *dir,
diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index fc8ac2ee0667..7d2723ce067e 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -600,7 +600,7 @@ static int gfs2_create_inode(struct inode *dir, struct dentry *dentry,
int error, free_vfs_inode = 0;
u32 aflags = 0;
unsigned blocks = 1;
- struct gfs2_diradd da = { .bh = NULL, };
+ struct gfs2_diradd da = { .bh = NULL, .save_loc = 1, };
if (!name->len || name->len > GFS2_FNAMESIZE)
return -ENAMETOOLONG;
@@ -899,7 +899,7 @@ static int gfs2_link(struct dentry *old_dentry, struct inode *dir,
struct gfs2_inode *ip = GFS2_I(inode);
struct gfs2_holder ghs[2];
struct buffer_head *dibh;
- struct gfs2_diradd da = { .bh = NULL, };
+ struct gfs2_diradd da = { .bh = NULL, .save_loc = 1, };
int error;
if (S_ISDIR(inode->i_mode))
@@ -1337,7 +1337,7 @@ static int gfs2_rename(struct inode *odir, struct dentry *odentry,
struct gfs2_rgrpd *nrgd;
unsigned int num_gh;
int dir_rename = 0;
- struct gfs2_diradd da = { .nr_blocks = 0, };
+ struct gfs2_diradd da = { .nr_blocks = 0, .save_loc = 0, };
unsigned int x;
int error;
--
1.9.3

9
kernel.spec
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@ -42,7 +42,7 @@ Summary: The Linux kernel
# For non-released -rc kernels, this will be appended after the rcX and
# gitX tags, so a 3 here would become part of release "0.rcX.gitX.3"
#
%global baserelease 300
%global baserelease 301
%global fedora_build %{baserelease}
# base_sublevel is the kernel version we're starting with and patching
@ -625,6 +625,8 @@ Patch26028: HID-rmi-check-sanity-of-incoming-report.patch
#rhbz 1145318
Patch26029: KEYS-Reinstate-EPERM-for-a-key-type-name-beginning-w.patch
Patch26030: GFS2-Make-rename-not-save-dirent-location.patch
# git clone ssh://git.fedorahosted.org/git/kernel-arm64.git, git diff master...devel
Patch30000: kernel-arm64.patch
@ -1363,6 +1365,8 @@ ApplyPatch HID-rmi-check-sanity-of-incoming-report.patch
#rhbz 1145318
ApplyPatch KEYS-Reinstate-EPERM-for-a-key-type-name-beginning-w.patch
ApplyPatch GFS2-Make-rename-not-save-dirent-location.patch
%if 0%{?aarch64patches}
ApplyPatch kernel-arm64.patch
%ifnarch aarch64 # this is stupid, but i want to notice before secondary koji does.
@ -2231,6 +2235,9 @@ fi
# ||----w |
# || ||
%changelog
* Tue Oct 07 2014 Josh Boyer <jwboyer@fedoraproject.org>
- Add patch to fix GFS2 regression (from Bob Peterson)
* Mon Oct 06 2014 Kyle McMartin <kyle@fedoraproject.org>
- enable 64K pages on arm64... (presently) needed to boot on amd seattle
platforms due to physical memory being unreachable.

12
ppc64-fixtools.patch
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@ -1,11 +1,14 @@
From: Peter Robinson <pbrobinson@gmail.com>
Date: Mon Oct 06 15:15:15 2014 +0100
Subject: [Patch] ppc64-fixtools
Date: Mon, 6 Oct 2014 15:15:15 +0100
Subject: [PATCH] ppc64-fixtools
Build tools on ppc64le (rhbz 1138884), Some minor ppc64 cleanups
---
tools/perf/arch/powerpc/util/skip-callchain-idx.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/tools/perf/arch/powerpc/util/skip-callchain-idx.c b/tools/perf/arch/powerpc/util/skip-callchain-idx.c
index a7c23a4..d73ef8b 100644
index a7c23a4b3778..d73ef8bb08c7 100644
--- a/tools/perf/arch/powerpc/util/skip-callchain-idx.c
+++ b/tools/perf/arch/powerpc/util/skip-callchain-idx.c
@@ -15,6 +15,7 @@
@ -16,3 +19,6 @@ index a7c23a4..d73ef8b 100644
/*
* When saving the callchain on Power, the kernel conservatively saves
--
1.9.3