aboutsummaryrefslogtreecommitdiffstats
path: root/fs/gfs2/inode.c
diff options
context:
space:
mode:
Diffstat (limited to 'fs/gfs2/inode.c')
-rw-r--r--fs/gfs2/inode.c71
1 files changed, 37 insertions, 34 deletions
diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index 063fdfcf8275..352f958769e1 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -191,13 +191,13 @@ struct inode *gfs2_inode_lookup(struct super_block *sb, unsigned int type,
fail_refresh:
ip->i_iopen_gh.gh_flags |= GL_NOCACHE;
ip->i_iopen_gh.gh_gl->gl_object = NULL;
- gfs2_glock_dq_uninit(&ip->i_iopen_gh);
+ gfs2_glock_dq_wait(&ip->i_iopen_gh);
+ gfs2_holder_uninit(&ip->i_iopen_gh);
fail_iopen:
if (io_gl)
gfs2_glock_put(io_gl);
fail_put:
ip->i_gl->gl_object = NULL;
- gfs2_glock_put(ip->i_gl);
fail:
iget_failed(inode);
return ERR_PTR(error);
@@ -593,7 +593,7 @@ static int gfs2_create_inode(struct inode *dir, struct dentry *dentry,
struct gfs2_inode *dip = GFS2_I(dir), *ip;
struct gfs2_sbd *sdp = GFS2_SB(&dip->i_inode);
struct gfs2_glock *io_gl;
- int error, free_vfs_inode = 0;
+ int error, free_vfs_inode = 1;
u32 aflags = 0;
unsigned blocks = 1;
struct gfs2_diradd da = { .bh = NULL, .save_loc = 1, };
@@ -601,7 +601,7 @@ static int gfs2_create_inode(struct inode *dir, struct dentry *dentry,
if (!name->len || name->len > GFS2_FNAMESIZE)
return -ENAMETOOLONG;
- error = gfs2_rs_alloc(dip);
+ error = gfs2_rsqa_alloc(dip);
if (error)
return error;
@@ -650,10 +650,10 @@ static int gfs2_create_inode(struct inode *dir, struct dentry *dentry,
error = posix_acl_create(dir, &mode, &default_acl, &acl);
if (error)
- goto fail_free_vfs_inode;
+ goto fail_gunlock;
ip = GFS2_I(inode);
- error = gfs2_rs_alloc(ip);
+ error = gfs2_rsqa_alloc(ip);
if (error)
goto fail_free_acls;
@@ -685,6 +685,11 @@ static int gfs2_create_inode(struct inode *dir, struct dentry *dentry,
ip->i_entries = 2;
break;
}
+
+ /* Force SYSTEM flag on all files and subdirs of a SYSTEM directory */
+ if (dip->i_diskflags & GFS2_DIF_SYSTEM)
+ ip->i_diskflags |= GFS2_DIF_SYSTEM;
+
gfs2_set_inode_flags(inode);
if ((GFS2_I(d_inode(sdp->sd_root_dir)) == dip) ||
@@ -733,6 +738,9 @@ static int gfs2_create_inode(struct inode *dir, struct dentry *dentry,
gfs2_set_iop(inode);
insert_inode_hash(inode);
+ free_vfs_inode = 0; /* After this point, the inode is no longer
+ considered free. Any failures need to undo
+ the gfs2 structures. */
if (default_acl) {
error = gfs2_set_acl(inode, default_acl, ACL_TYPE_DEFAULT);
posix_acl_release(default_acl);
@@ -766,24 +774,19 @@ static int gfs2_create_inode(struct inode *dir, struct dentry *dentry,
return error;
fail_gunlock3:
- gfs2_glock_dq_uninit(ghs + 1);
- if (ip->i_gl)
- gfs2_glock_put(ip->i_gl);
- goto fail_gunlock;
-
+ gfs2_glock_dq_uninit(&ip->i_iopen_gh);
+ gfs2_glock_put(io_gl);
fail_gunlock2:
gfs2_glock_dq_uninit(ghs + 1);
fail_free_inode:
if (ip->i_gl)
gfs2_glock_put(ip->i_gl);
- gfs2_rs_delete(ip, NULL);
+ gfs2_rsqa_delete(ip, NULL);
fail_free_acls:
if (default_acl)
posix_acl_release(default_acl);
if (acl)
posix_acl_release(acl);
-fail_free_vfs_inode:
- free_vfs_inode = 1;
fail_gunlock:
gfs2_dir_no_add(&da);
gfs2_glock_dq_uninit(ghs);
@@ -898,7 +901,7 @@ static int gfs2_link(struct dentry *old_dentry, struct inode *dir,
if (S_ISDIR(inode->i_mode))
return -EPERM;
- error = gfs2_rs_alloc(dip);
+ error = gfs2_rsqa_alloc(dip);
if (error)
return error;
@@ -1371,7 +1374,7 @@ static int gfs2_rename(struct inode *odir, struct dentry *odentry,
if (error)
return error;
- error = gfs2_rs_alloc(ndip);
+ error = gfs2_rsqa_alloc(ndip);
if (error)
return error;
@@ -1712,24 +1715,30 @@ static int gfs2_rename2(struct inode *odir, struct dentry *odentry,
}
/**
- * gfs2_follow_link - Follow a symbolic link
+ * gfs2_get_link - Follow a symbolic link
* @dentry: The dentry of the link
- * @nd: Data that we pass to vfs_follow_link()
+ * @inode: The inode of the link
+ * @done: destructor for return value
*
* This can handle symlinks of any size.
*
* Returns: 0 on success or error code
*/
-static const char *gfs2_follow_link(struct dentry *dentry, void **cookie)
+static const char *gfs2_get_link(struct dentry *dentry,
+ struct inode *inode,
+ struct delayed_call *done)
{
- struct gfs2_inode *ip = GFS2_I(d_inode(dentry));
+ struct gfs2_inode *ip = GFS2_I(inode);
struct gfs2_holder i_gh;
struct buffer_head *dibh;
unsigned int size;
char *buf;
int error;
+ if (!dentry)
+ return ERR_PTR(-ECHILD);
+
gfs2_holder_init(ip->i_gl, LM_ST_SHARED, 0, &i_gh);
error = gfs2_glock_nq(&i_gh);
if (error) {
@@ -1759,7 +1768,7 @@ static const char *gfs2_follow_link(struct dentry *dentry, void **cookie)
out:
gfs2_glock_dq_uninit(&i_gh);
if (!IS_ERR(buf))
- *cookie = buf;
+ set_delayed_call(done, kfree_link, buf);
return buf;
}
@@ -1854,11 +1863,7 @@ static int setattr_chown(struct inode *inode, struct iattr *attr)
if (!(attr->ia_valid & ATTR_GID) || gid_eq(ogid, ngid))
ogid = ngid = NO_GID_QUOTA_CHANGE;
- error = get_write_access(inode);
- if (error)
- return error;
-
- error = gfs2_rs_alloc(ip);
+ error = gfs2_rsqa_alloc(ip);
if (error)
goto out;
@@ -1898,7 +1903,6 @@ out_end_trans:
out_gunlock_q:
gfs2_quota_unlock(ip);
out:
- put_write_access(inode);
return error;
}
@@ -1920,7 +1924,7 @@ static int gfs2_setattr(struct dentry *dentry, struct iattr *attr)
struct gfs2_holder i_gh;
int error;
- error = gfs2_rs_alloc(ip);
+ error = gfs2_rsqa_alloc(ip);
if (error)
return error;
@@ -2002,7 +2006,7 @@ static int gfs2_setxattr(struct dentry *dentry, const char *name,
gfs2_holder_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, &gh);
ret = gfs2_glock_nq(&gh);
if (ret == 0) {
- ret = gfs2_rs_alloc(ip);
+ ret = gfs2_rsqa_alloc(ip);
if (ret == 0)
ret = generic_setxattr(dentry, name, data, size, flags);
gfs2_glock_dq(&gh);
@@ -2043,7 +2047,7 @@ static int gfs2_removexattr(struct dentry *dentry, const char *name)
gfs2_holder_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, &gh);
ret = gfs2_glock_nq(&gh);
if (ret == 0) {
- ret = gfs2_rs_alloc(ip);
+ ret = gfs2_rsqa_alloc(ip);
if (ret == 0)
ret = generic_removexattr(dentry, name);
gfs2_glock_dq(&gh);
@@ -2063,7 +2067,7 @@ static int gfs2_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
if (ret)
return ret;
- mutex_lock(&inode->i_mutex);
+ inode_lock(inode);
ret = gfs2_glock_nq_init(ip->i_gl, LM_ST_SHARED, 0, &gh);
if (ret)
@@ -2090,7 +2094,7 @@ static int gfs2_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
gfs2_glock_dq_uninit(&gh);
out:
- mutex_unlock(&inode->i_mutex);
+ inode_unlock(inode);
return ret;
}
@@ -2132,8 +2136,7 @@ const struct inode_operations gfs2_dir_iops = {
const struct inode_operations gfs2_symlink_iops = {
.readlink = generic_readlink,
- .follow_link = gfs2_follow_link,
- .put_link = kfree_put_link,
+ .get_link = gfs2_get_link,
.permission = gfs2_permission,
.setattr = gfs2_setattr,
.getattr = gfs2_getattr,
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.