The patch titled
scsi: use non-racy method for proc entries creation
has been added to the -mm tree. Its filename is
scsi-use-non-racy-method-for-proc-entries-creation.patch
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See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: scsi: use non-racy method for proc entries creation
From: "Denis V. Lunev" <den@xxxxxxxxxx>
Use proc_create() to make sure that ->proc_fops be setup before gluing PDE to
main tree.
Add correct ->owner to proc_fops to fix reading/module unloading race.
Signed-off-by: Denis V. Lunev <den@xxxxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxx>
Cc: Alexey Dobriyan <adobriyan@xxxxxxxxx>
Cc: "Eric W. Biederman" <ebiederm@xxxxxxxxxxxx>
Cc: James Bottomley <James.Bottomley@xxxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/scsi/scsi_proc.c | 4 ++--
drivers/scsi/sg.c | 12 ++++--------
2 files changed, 6 insertions(+), 10 deletions(-)
diff -puN drivers/scsi/scsi_proc.c~scsi-use-non-racy-method-for-proc-entries-creation drivers/scsi/scsi_proc.c
--- a/drivers/scsi/scsi_proc.c~scsi-use-non-racy-method-for-proc-entries-creation
+++ a/drivers/scsi/scsi_proc.c
@@ -408,6 +408,7 @@ static int proc_scsi_open(struct inode *
}
static const struct file_operations proc_scsi_operations = {
+ .owner = THIS_MODULE,
.open = proc_scsi_open,
.read = seq_read,
.write = proc_scsi_write,
@@ -426,10 +427,9 @@ int __init scsi_init_procfs(void)
if (!proc_scsi)
goto err1;
- pde = create_proc_entry("scsi/scsi", 0, NULL);
+ pde = proc_create("scsi/scsi", 0, NULL, &proc_scsi_operations);
if (!pde)
goto err2;
- pde->proc_fops = &proc_scsi_operations;
return 0;
diff -puN drivers/scsi/sg.c~scsi-use-non-racy-method-for-proc-entries-creation drivers/scsi/sg.c
--- a/drivers/scsi/sg.c~scsi-use-non-racy-method-for-proc-entries-creation
+++ a/drivers/scsi/sg.c
@@ -2667,7 +2667,6 @@ sg_proc_init(void)
{
int k, mask;
int num_leaves = ARRAY_SIZE(sg_proc_leaf_arr);
- struct proc_dir_entry *pdep;
struct sg_proc_leaf * leaf;
sg_proc_sgp = proc_mkdir(sg_proc_sg_dirname, NULL);
@@ -2676,13 +2675,10 @@ sg_proc_init(void)
for (k = 0; k < num_leaves; ++k) {
leaf = &sg_proc_leaf_arr[k];
mask = leaf->fops->write ? S_IRUGO | S_IWUSR : S_IRUGO;
- pdep = create_proc_entry(leaf->name, mask, sg_proc_sgp);
- if (pdep) {
- leaf->fops->owner = THIS_MODULE,
- leaf->fops->read = seq_read,
- leaf->fops->llseek = seq_lseek,
- pdep->proc_fops = leaf->fops;
- }
+ leaf->fops->owner = THIS_MODULE;
+ leaf->fops->read = seq_read;
+ leaf->fops->llseek = seq_lseek;
+ proc_create(leaf->name, mask, sg_proc_sgp, leaf->fops);
}
return 0;
}
_
Patches currently in -mm which might be from den@xxxxxxxxxx are
git-net.patch
proc-introduce-proc_create_data-to-setup-de-data.patch
nfsd-use-proc_create-to-setup-de-proc_fops.patch
nfs-use-proc_create-to-setup-de-proc_fops.patch
afs-use-non-racy-method-for-proc-entries-creation.patch
ext4-use-non-racy-method-for-proc-entries-creation.patch
reiserfs-use-non-racy-method-for-proc-entries-creation.patch
jbd2-use-non-racy-method-for-proc-entries-creation.patch
sysvipc-use-non-racy-method-for-proc-entries-creation.patch
mm-use-non-racy-method-for-proc-swaps-creation.patch
sound-use-non-racy-method-for-proc-driver-snd-page-alloc-creation.patch
zorro-use-non-racy-method-for-proc-entries-creation.patch
samples-use-non-racy-method-for-proc-marker-example-creation.patch
scsi-use-non-racy-method-for-proc-entries-creation.patch
usb-use-non-racy-method-for-proc-entries-creation.patch
s390-use-non-racy-method-for-proc-entries-creation.patch
arm-use-non-racy-method-for-proc-davinci_clocks-creation.patch
avr32-proc-use-non-racy-method-for-proc-tlb-creation.patch
cris-use-non-racy-method-for-proc-system_profile-creation.patch
ia64-use-non-racy-method-for-proc-entries-creation.patch
parisc-use-non-racy-method-for-proc-pcxl_dma-creation.patch
powerpc-use-non-racy-method-for-proc-entries-creation.patch
acpi-use-non-racy-method-for-proc-entries-creation.patch
netdev-use-non-racy-method-for-proc-entries-creation.patch
isdn-use-non-racy-method-for-proc-entries-creation.patch
kernel-use-non-racy-method-for-proc-entries-creation.patch
parisc-use-non-racy-method-for-proc-entries-creation.patch
drivers-use-non-racy-method-for-proc-entries-creation.patch
drivers-use-non-racy-method-for-proc-entries-creation-2.patch
sysctl-merge-equal-proc_sys_read-and-proc_sys_write.patch
sysctl-clean-from-unneeded-extern-and-forward-declarations.patch
sysctl-add-the-permissions-callback-on-the-ctl_table_root.patch
proc-use-non-racy-method-for-proc-page_owner-creation-page_owner.patch
--
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