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efs: fix the efs new mount api implementation

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Commit 39a6c668e4 (efs: convert efs to use the new mount api)
did not include anything from v2 and v3 that were also submitted.
Fix this by bringing in those changes that were proposed in v2 and
v3.

Fixes: 39a6c668e4 efs: convert efs to use the new mount api.

Signed-off-by: Bill O'Donnell <bodonnel@redhat.com>
Link: https://lore.kernel.org/r/20241014190241.4093825-1-bodonnel@redhat.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
This commit is contained in:
Bill O'Donnell 2024-10-14 14:02:41 -05:00 committed by Christian Brauner
parent c1a6b0fc04
commit 51ceeb1a81
No known key found for this signature in database
GPG Key ID: 91C61BC06578DCA2
1 changed files with 3 additions and 40 deletions
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43
fs/efs/super.c
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@ -15,7 +15,6 @@
#include <linux/vfs.h> #include <linux/vfs.h>
#include <linux/blkdev.h> #include <linux/blkdev.h>
#include <linux/fs_context.h> #include <linux/fs_context.h>
#include <linux/fs_parser.h>
#include "efs.h" #include "efs.h"
#include <linux/efs_vh.h> #include <linux/efs_vh.h>
#include <linux/efs_fs_sb.h> #include <linux/efs_fs_sb.h>
@ -49,15 +48,6 @@ static struct pt_types sgi_pt_types[] = {
{0, NULL} {0, NULL}
}; };
enum {
Opt_explicit_open,
};
static const struct fs_parameter_spec efs_param_spec[] = {
fsparam_flag ("explicit-open", Opt_explicit_open),
{}
};
/* /*
* File system definition and registration. * File system definition and registration.
*/ */
@ -67,7 +57,6 @@ static struct file_system_type efs_fs_type = {
.kill_sb = efs_kill_sb, .kill_sb = efs_kill_sb,
.fs_flags = FS_REQUIRES_DEV, .fs_flags = FS_REQUIRES_DEV,
.init_fs_context = efs_init_fs_context, .init_fs_context = efs_init_fs_context,
.parameters = efs_param_spec,
}; };
MODULE_ALIAS_FS("efs"); MODULE_ALIAS_FS("efs");
@ -265,7 +254,8 @@ static int efs_fill_super(struct super_block *s, struct fs_context *fc)
if (!sb_set_blocksize(s, EFS_BLOCKSIZE)) { if (!sb_set_blocksize(s, EFS_BLOCKSIZE)) {
pr_err("device does not support %d byte blocks\n", pr_err("device does not support %d byte blocks\n",
EFS_BLOCKSIZE); EFS_BLOCKSIZE);
return -EINVAL; return invalf(fc, "device does not support %d byte blocks\n",
EFS_BLOCKSIZE);
} }
/* read the vh (volume header) block */ /* read the vh (volume header) block */
@ -327,43 +317,22 @@ static int efs_fill_super(struct super_block *s, struct fs_context *fc)
return 0; return 0;
} }
static void efs_free_fc(struct fs_context *fc)
{
kfree(fc->fs_private);
}
static int efs_get_tree(struct fs_context *fc) static int efs_get_tree(struct fs_context *fc)
{ {
return get_tree_bdev(fc, efs_fill_super); return get_tree_bdev(fc, efs_fill_super);
} }
static int efs_parse_param(struct fs_context *fc, struct fs_parameter *param)
{
int token;
struct fs_parse_result result;
token = fs_parse(fc, efs_param_spec, param, &result);
if (token < 0)
return token;
return 0;
}
static int efs_reconfigure(struct fs_context *fc) static int efs_reconfigure(struct fs_context *fc)
{ {
sync_filesystem(fc->root->d_sb); sync_filesystem(fc->root->d_sb);
fc->sb_flags |= SB_RDONLY;
return 0; return 0;
} }
struct efs_context {
unsigned long s_mount_opts;
};
static const struct fs_context_operations efs_context_opts = { static const struct fs_context_operations efs_context_opts = {
.parse_param = efs_parse_param,
.get_tree = efs_get_tree, .get_tree = efs_get_tree,
.reconfigure = efs_reconfigure, .reconfigure = efs_reconfigure,
.free = efs_free_fc,
}; };
/* /*
@ -371,12 +340,6 @@ static const struct fs_context_operations efs_context_opts = {
*/ */
static int efs_init_fs_context(struct fs_context *fc) static int efs_init_fs_context(struct fs_context *fc)
{ {
struct efs_context *ctx;
ctx = kzalloc(sizeof(struct efs_context), GFP_KERNEL);
if (!ctx)
return -ENOMEM;
fc->fs_private = ctx;
fc->ops = &efs_context_opts; fc->ops = &efs_context_opts;
return 0; return 0;