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authorrwatson <rwatson@FreeBSD.org>2004-06-22 04:29:07 +0000
committerrwatson <rwatson@FreeBSD.org>2004-06-22 04:29:07 +0000
commit8a33376794b4da9b66b8e399df42c8f38c02836b (patch)
tree2661b8e0345ebf4de79d034fdda1724137770e4a /sys/kern
parent6286ff7bea9e6220d4c974b5d38bc8282909db9c (diff)
downloadFreeBSD-src-8a33376794b4da9b66b8e399df42c8f38c02836b.zip
FreeBSD-src-8a33376794b4da9b66b8e399df42c8f38c02836b.tar.gz
Acquire Giant in link() so that we can mark it as MSTD in
syscalls.master. Don't want to do it in kern_link() since the Linux emulation code calls kern_link() after performing other actions requiring Giant.
Diffstat (limited to 'sys/kern')
-rw-r--r--sys/kern/vfs_extattr.c6
-rw-r--r--sys/kern/vfs_syscalls.c6
2 files changed, 10 insertions, 2 deletions
diff --git a/sys/kern/vfs_extattr.c b/sys/kern/vfs_extattr.c
index 10ff13f..38b21e4 100644
--- a/sys/kern/vfs_extattr.c
+++ b/sys/kern/vfs_extattr.c
@@ -1338,8 +1338,12 @@ link(td, uap)
char *link;
} */ *uap;
{
+ int error;
- return (kern_link(td, uap->path, uap->link, UIO_USERSPACE));
+ mtx_lock(&Giant);
+ error = kern_link(td, uap->path, uap->link, UIO_USERSPACE);
+ mtx_unlock(&Giant);
+ return (error);
}
SYSCTL_DECL(_security_bsd);
diff --git a/sys/kern/vfs_syscalls.c b/sys/kern/vfs_syscalls.c
index 10ff13f..38b21e4 100644
--- a/sys/kern/vfs_syscalls.c
+++ b/sys/kern/vfs_syscalls.c
@@ -1338,8 +1338,12 @@ link(td, uap)
char *link;
} */ *uap;
{
+ int error;
- return (kern_link(td, uap->path, uap->link, UIO_USERSPACE));
+ mtx_lock(&Giant);
+ error = kern_link(td, uap->path, uap->link, UIO_USERSPACE);
+ mtx_unlock(&Giant);
+ return (error);
}
SYSCTL_DECL(_security_bsd);
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