From: Alexey Dobriyan <adobri...@gmail.com>
/proc has been ignoring struct file_operations::owner field for 10 years.
Specifically, it started with commit 786d7e1612f0b0adb6046f19b906609e4fe8b1ba
("Fix rmmod/read/write races in /proc entries"). Notice the chunk where
inode->i_fop is initialized with proxy struct file_operations for
regular files:
- if (de->proc_fops)
- inode->i_fop = de->proc_fops;
+ if (de->proc_fops) {
+ if (S_ISREG(inode->i_mode))
+ inode->i_fop = &proc_reg_file_ops;
+ else
+ inode->i_fop = de->proc_fops;
+ }
VFS stopped pinning module at this point.
# ipvs
Acked-by: Julian Anastasov <j...@ssi.bg>
Signed-off-by: Alexey Dobriyan <adobri...@gmail.com>
Acked-by: Simon Horman <horms+rene...@verge.net.au>
Signed-off-by: Pablo Neira Ayuso <pa...@netfilter.org>
---
net/netfilter/ipvs/ip_vs_app.c | 1 -
net/netfilter/ipvs/ip_vs_conn.c | 2 --
net/netfilter/ipvs/ip_vs_ctl.c | 3 ---
net/netfilter/nf_conntrack_expect.c | 1 -
net/netfilter/nf_conntrack_standalone.c | 2 --
net/netfilter/nf_log.c | 1 -
net/netfilter/nf_synproxy_core.c | 1 -
net/netfilter/nfnetlink_log.c | 1 -
net/netfilter/nfnetlink_queue.c | 1 -
net/netfilter/x_tables.c | 3 ---
net/netfilter/xt_hashlimit.c | 3 ---
11 files changed, 19 deletions(-)
diff --git a/net/netfilter/ipvs/ip_vs_app.c b/net/netfilter/ipvs/ip_vs_app.c
index 299edc6add5a..1c98c907bc63 100644
--- a/net/netfilter/ipvs/ip_vs_app.c
+++ b/net/netfilter/ipvs/ip_vs_app.c
@@ -595,7 +595,6 @@ static int ip_vs_app_open(struct inode *inode, struct file
*file)
}
static const struct file_operations ip_vs_app_fops = {
- .owner = THIS_MODULE,
.open = ip_vs_app_open,
.read = seq_read,
.llseek = seq_lseek,
diff --git a/net/netfilter/ipvs/ip_vs_conn.c b/net/netfilter/ipvs/ip_vs_conn.c
index f489b8db2406..370abbf6f421 100644
--- a/net/netfilter/ipvs/ip_vs_conn.c
+++ b/net/netfilter/ipvs/ip_vs_conn.c
@@ -1143,7 +1143,6 @@ static int ip_vs_conn_open(struct inode *inode, struct
file *file)
}
static const struct file_operations ip_vs_conn_fops = {
- .owner = THIS_MODULE,
.open = ip_vs_conn_open,
.read = seq_read,
.llseek = seq_lseek,
@@ -1221,7 +1220,6 @@ static int ip_vs_conn_sync_open(struct inode *inode,
struct file *file)
}
static const struct file_operations ip_vs_conn_sync_fops = {
- .owner = THIS_MODULE,
.open = ip_vs_conn_sync_open,
.read = seq_read,
.llseek = seq_lseek,
diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c
index fff213eacf2a..5ebde4b15810 100644
--- a/net/netfilter/ipvs/ip_vs_ctl.c
+++ b/net/netfilter/ipvs/ip_vs_ctl.c
@@ -2116,7 +2116,6 @@ static int ip_vs_info_open(struct inode *inode, struct
file *file)
}
static const struct file_operations ip_vs_info_fops = {
- .owner = THIS_MODULE,
.open = ip_vs_info_open,
.read = seq_read,
.llseek = seq_lseek,
@@ -2161,7 +2160,6 @@ static int ip_vs_stats_seq_open(struct inode *inode,
struct file *file)
}
static const struct file_operations ip_vs_stats_fops = {
- .owner = THIS_MODULE,
.open = ip_vs_stats_seq_open,
.read = seq_read,
.llseek = seq_lseek,
@@ -2230,7 +2228,6 @@ static int ip_vs_stats_percpu_seq_open(struct inode
*inode, struct file *file)
}
static const struct file_operations ip_vs_stats_percpu_fops = {
- .owner = THIS_MODULE,
.open = ip_vs_stats_percpu_seq_open,
.read = seq_read,
.llseek = seq_lseek,
diff --git a/net/netfilter/nf_conntrack_expect.c
b/net/netfilter/nf_conntrack_expect.c
index d6748a8a79c5..8ef21d9f9a00 100644
--- a/net/netfilter/nf_conntrack_expect.c
+++ b/net/netfilter/nf_conntrack_expect.c
@@ -649,7 +649,6 @@ static int exp_open(struct inode *inode, struct file *file)
}
static const struct file_operations exp_file_ops = {
- .owner = THIS_MODULE,
.open = exp_open,
.read = seq_read,
.llseek = seq_lseek,
diff --git a/net/netfilter/nf_conntrack_standalone.c
b/net/netfilter/nf_conntrack_standalone.c
index 46d32baad095..9123fdec5e14 100644
--- a/net/netfilter/nf_conntrack_standalone.c
+++ b/net/netfilter/nf_conntrack_standalone.c
@@ -382,7 +382,6 @@ static int ct_open(struct inode *inode, struct file *file)
}
static const struct file_operations ct_file_ops = {
- .owner = THIS_MODULE,
.open = ct_open,
.read = seq_read,
.llseek = seq_lseek,
@@ -475,7 +474,6 @@ static int ct_cpu_seq_open(struct inode *inode, struct file
*file)
}
static const struct file_operations ct_cpu_seq_fops = {
- .owner = THIS_MODULE,
.open = ct_cpu_seq_open,
.read = seq_read,
.llseek = seq_lseek,
diff --git a/net/netfilter/nf_log.c b/net/netfilter/nf_log.c
index 8bb152a7cca4..c2c1b16b7538 100644
--- a/net/netfilter/nf_log.c
+++ b/net/netfilter/nf_log.c
@@ -402,7 +402,6 @@ static int nflog_open(struct inode *inode, struct file
*file)
}
static const struct file_operations nflog_file_ops = {
- .owner = THIS_MODULE,
.open = nflog_open,
.read = seq_read,
.llseek = seq_lseek,
diff --git a/net/netfilter/nf_synproxy_core.c b/net/netfilter/nf_synproxy_core.c
index 49bd8bb16b18..92139a087260 100644
--- a/net/netfilter/nf_synproxy_core.c
+++ b/net/netfilter/nf_synproxy_core.c
@@ -317,7 +317,6 @@ static int synproxy_cpu_seq_open(struct inode *inode,
struct file *file)
}
static const struct file_operations synproxy_cpu_seq_fops = {
- .owner = THIS_MODULE,
.open = synproxy_cpu_seq_open,
.read = seq_read,
.llseek = seq_lseek,
diff --git a/net/netfilter/nfnetlink_log.c b/net/netfilter/nfnetlink_log.c
index e955bec0acc6..7b46aa4c478d 100644
--- a/net/netfilter/nfnetlink_log.c
+++ b/net/netfilter/nfnetlink_log.c
@@ -1054,7 +1054,6 @@ static int nful_open(struct inode *inode, struct file
*file)
}
static const struct file_operations nful_file_ops = {
- .owner = THIS_MODULE,
.open = nful_open,
.read = seq_read,
.llseek = seq_lseek,
diff --git a/net/netfilter/nfnetlink_queue.c b/net/netfilter/nfnetlink_queue.c
index 2db35f2d553d..8bba23160a68 100644
--- a/net/netfilter/nfnetlink_queue.c
+++ b/net/netfilter/nfnetlink_queue.c
@@ -1477,7 +1477,6 @@ static int nfqnl_open(struct inode *inode, struct file
*file)
}
static const struct file_operations nfqnl_file_ops = {
- .owner = THIS_MODULE,
.open = nfqnl_open,
.read = seq_read,
.llseek = seq_lseek,
diff --git a/net/netfilter/x_tables.c b/net/netfilter/x_tables.c
index 3c2548787d78..0b56bf05c169 100644
--- a/net/netfilter/x_tables.c
+++ b/net/netfilter/x_tables.c
@@ -1362,7 +1362,6 @@ static int xt_table_open(struct inode *inode, struct file
*file)
}
static const struct file_operations xt_table_ops = {
- .owner = THIS_MODULE,
.open = xt_table_open,
.read = seq_read,
.llseek = seq_lseek,
@@ -1498,7 +1497,6 @@ static int xt_match_open(struct inode *inode, struct file
*file)
}
static const struct file_operations xt_match_ops = {
- .owner = THIS_MODULE,
.open = xt_match_open,
.read = seq_read,
.llseek = seq_lseek,
@@ -1551,7 +1549,6 @@ static int xt_target_open(struct inode *inode, struct
file *file)
}
static const struct file_operations xt_target_ops = {
- .owner = THIS_MODULE,
.open = xt_target_open,
.read = seq_read,
.llseek = seq_lseek,
diff --git a/net/netfilter/xt_hashlimit.c b/net/netfilter/xt_hashlimit.c
index ec51d9a9512d..ca6847403ca2 100644
--- a/net/netfilter/xt_hashlimit.c
+++ b/net/netfilter/xt_hashlimit.c
@@ -1266,7 +1266,6 @@ static int dl_proc_open(struct inode *inode, struct file
*file)
}
static const struct file_operations dl_file_ops_v2 = {
- .owner = THIS_MODULE,
.open = dl_proc_open_v2,
.read = seq_read,
.llseek = seq_lseek,
@@ -1274,7 +1273,6 @@ static const struct file_operations dl_file_ops_v2 = {
};
static const struct file_operations dl_file_ops_v1 = {
- .owner = THIS_MODULE,
.open = dl_proc_open_v1,
.read = seq_read,
.llseek = seq_lseek,
@@ -1282,7 +1280,6 @@ static const struct file_operations dl_file_ops_v1 = {
};
static const struct file_operations dl_file_ops = {
- .owner = THIS_MODULE,
.open = dl_proc_open,
.read = seq_read,
.llseek = seq_lseek,
--
2.11.0
