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Extend PF_FSTRANS critical regions

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Additional testing has shown that the region covered by PF_FSTRANS
needs to be extended to cover the  zpl_xattr_security_init() and
init_acl() functions.  The zpl_mark_dirty() function can also recurse
and therefore must always be protected.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Chunwei Chen <tuxoko@gmail.com>
Signed-off-by: Richard Yao <ryao@gentoo.org>
Closes #3331
This commit is contained in:
Brian Behlendorf 2015-04-23 10:09:19 -07:00
parent 614e598c88
commit a438ff0e85
2 changed files with 14 additions and 6 deletions
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12
module/zfs/zpl_inode.c
View File

@ -106,13 +106,13 @@ zpl_create(struct inode *dir, struct dentry *dentry, zpl_umode_t mode,
cookie = spl_fstrans_mark();
error = -zfs_create(dir, dname(dentry), vap, 0, mode, &ip, cr, 0, NULL);
spl_fstrans_unmark(cookie);
if (error == 0) {
VERIFY0(zpl_xattr_security_init(ip, dir, &dentry->d_name));
VERIFY0(zpl_init_acl(ip, dir));
d_instantiate(dentry, ip);
}
spl_fstrans_unmark(cookie);
kmem_free(vap, sizeof (vattr_t));
crfree(cr);
ASSERT3S(error, <=, 0);
@ -144,13 +144,13 @@ zpl_mknod(struct inode *dir, struct dentry *dentry, zpl_umode_t mode,
cookie = spl_fstrans_mark();
error = -zfs_create(dir, dname(dentry), vap, 0, mode, &ip, cr, 0, NULL);
spl_fstrans_unmark(cookie);
if (error == 0) {
VERIFY0(zpl_xattr_security_init(ip, dir, &dentry->d_name));
VERIFY0(zpl_init_acl(ip, dir));
d_instantiate(dentry, ip);
}
spl_fstrans_unmark(cookie);
kmem_free(vap, sizeof (vattr_t));
crfree(cr);
ASSERT3S(error, <=, 0);
@ -190,13 +190,13 @@ zpl_mkdir(struct inode *dir, struct dentry *dentry, zpl_umode_t mode)
cookie = spl_fstrans_mark();
error = -zfs_mkdir(dir, dname(dentry), vap, &ip, cr, 0, NULL);
spl_fstrans_unmark(cookie);
if (error == 0) {
VERIFY0(zpl_xattr_security_init(ip, dir, &dentry->d_name));
VERIFY0(zpl_init_acl(ip, dir));
d_instantiate(dentry, ip);
}
spl_fstrans_unmark(cookie);
kmem_free(vap, sizeof (vattr_t));
crfree(cr);
ASSERT3S(error, <=, 0);
@ -273,10 +273,10 @@ zpl_setattr(struct dentry *dentry, struct iattr *ia)
cookie = spl_fstrans_mark();
error = -zfs_setattr(ip, vap, 0, cr);
spl_fstrans_unmark(cookie);
if (!error && (ia->ia_valid & ATTR_MODE))
error = zpl_chmod_acl(ip);
spl_fstrans_unmark(cookie);
kmem_free(vap, sizeof (vattr_t));
crfree(cr);
ASSERT3S(error, <=, 0);
@ -317,12 +317,12 @@ zpl_symlink(struct inode *dir, struct dentry *dentry, const char *name)
cookie = spl_fstrans_mark();
error = -zfs_symlink(dir, dname(dentry), vap, (char *)name, &ip, cr, 0);
spl_fstrans_unmark(cookie);
if (error == 0) {
VERIFY0(zpl_xattr_security_init(ip, dir, &dentry->d_name));
d_instantiate(dentry, ip);
}
spl_fstrans_unmark(cookie);
kmem_free(vap, sizeof (vattr_t));
crfree(cr);
ASSERT3S(error, <=, 0);
@ -391,7 +391,6 @@ zpl_link(struct dentry *old_dentry, struct inode *dir, struct dentry *dentry)
cookie = spl_fstrans_mark();
error = -zfs_link(dir, ip, dname(dentry), cr);
spl_fstrans_unmark(cookie);
if (error) {
iput(ip);
goto out;
@ -399,6 +398,7 @@ zpl_link(struct dentry *old_dentry, struct inode *dir, struct dentry *dentry)
d_instantiate(dentry, ip);
out:
spl_fstrans_unmark(cookie);
crfree(cr);
ASSERT3S(error, <=, 0);

8
module/zfs/zpl_super.c
View File

@ -57,13 +57,21 @@ zpl_inode_destroy(struct inode *ip)
static void
zpl_dirty_inode(struct inode *ip, int flags)
{
fstrans_cookie_t cookie;
cookie = spl_fstrans_mark();
zfs_dirty_inode(ip, flags);
spl_fstrans_unmark(cookie);
}
#else
static void
zpl_dirty_inode(struct inode *ip)
{
fstrans_cookie_t cookie;
cookie = spl_fstrans_mark();
zfs_dirty_inode(ip, 0);
spl_fstrans_unmark(cookie);
}
#endif /* HAVE_DIRTY_INODE_WITH_FLAGS */