From f70575805708cabdedea7498aaa3f710fde4d920 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Wed, 31 Jan 2024 03:29:01 +0000
Subject: [PATCH] add lvds1024*800
---
kernel/fs/bfs/inode.c | 82 +++++++++++++++++-----------------------
1 files changed, 35 insertions(+), 47 deletions(-)
diff --git a/kernel/fs/bfs/inode.c b/kernel/fs/bfs/inode.c
index d81c148..293223c 100644
--- a/kernel/fs/bfs/inode.c
+++ b/kernel/fs/bfs/inode.c
@@ -1,10 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* fs/bfs/inode.c
* BFS superblock and inode operations.
- * Copyright (C) 1999-2006 Tigran Aivazian <aivazian.tigran@gmail.com>
+ * Copyright (C) 1999-2018 Tigran Aivazian <aivazian.tigran@gmail.com>
* From fs/minix, Copyright (C) 1991, 1992 Linus Torvalds.
- *
- * Made endianness-clean by Andrew Stribblehill <ads@wompom.org>, 2005.
+ * Made endianness-clean by Andrew Stribblehill <ads@wompom.org>, 2005.
*/
#include <linux/module.h>
@@ -22,6 +22,7 @@
MODULE_AUTHOR("Tigran Aivazian <aivazian.tigran@gmail.com>");
MODULE_DESCRIPTION("SCO UnixWare BFS filesystem for Linux");
MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
#undef DEBUG
@@ -118,12 +119,12 @@
{
struct bfs_sb_info *info = BFS_SB(inode->i_sb);
unsigned int ino = (u16)inode->i_ino;
- unsigned long i_sblock;
+ unsigned long i_sblock;
struct bfs_inode *di;
struct buffer_head *bh;
int err = 0;
- dprintf("ino=%08x\n", ino);
+ dprintf("ino=%08x\n", ino);
di = find_inode(inode->i_sb, ino, &bh);
if (IS_ERR(di))
@@ -144,7 +145,7 @@
di->i_atime = cpu_to_le32(inode->i_atime.tv_sec);
di->i_mtime = cpu_to_le32(inode->i_mtime.tv_sec);
di->i_ctime = cpu_to_le32(inode->i_ctime.tv_sec);
- i_sblock = BFS_I(inode)->i_sblock;
+ i_sblock = BFS_I(inode)->i_sblock;
di->i_sblock = cpu_to_le32(i_sblock);
di->i_eblock = cpu_to_le32(BFS_I(inode)->i_eblock);
di->i_eoffset = cpu_to_le32(i_sblock * BFS_BSIZE + inode->i_size - 1);
@@ -188,13 +189,13 @@
mark_buffer_dirty(bh);
brelse(bh);
- if (bi->i_dsk_ino) {
+ if (bi->i_dsk_ino) {
if (bi->i_sblock)
info->si_freeb += bi->i_eblock + 1 - bi->i_sblock;
info->si_freei++;
clear_bit(ino, info->si_imap);
- bfs_dump_imap("delete_inode", s);
- }
+ bfs_dump_imap("evict_inode", s);
+ }
/*
* If this was the last file, make the previous block
@@ -214,7 +215,6 @@
return;
mutex_destroy(&info->bfs_lock);
- kfree(info->si_imap);
kfree(info);
s->s_fs_info = NULL;
}
@@ -230,8 +230,7 @@
buf->f_bfree = buf->f_bavail = info->si_freeb;
buf->f_files = info->si_lasti + 1 - BFS_ROOT_INO;
buf->f_ffree = info->si_freei;
- buf->f_fsid.val[0] = (u32)id;
- buf->f_fsid.val[1] = (u32)(id >> 32);
+ buf->f_fsid = u64_to_fsid(id);
buf->f_namelen = BFS_NAMELEN;
return 0;
}
@@ -247,15 +246,9 @@
return &bi->vfs_inode;
}
-static void bfs_i_callback(struct rcu_head *head)
+static void bfs_free_inode(struct inode *inode)
{
- struct inode *inode = container_of(head, struct inode, i_rcu);
kmem_cache_free(bfs_inode_cachep, BFS_I(inode));
-}
-
-static void bfs_destroy_inode(struct inode *inode)
-{
- call_rcu(&inode->i_rcu, bfs_i_callback);
}
static void init_once(void *foo)
@@ -289,7 +282,7 @@
static const struct super_operations bfs_sops = {
.alloc_inode = bfs_alloc_inode,
- .destroy_inode = bfs_destroy_inode,
+ .free_inode = bfs_free_inode,
.write_inode = bfs_write_inode,
.evict_inode = bfs_evict_inode,
.put_super = bfs_put_super,
@@ -311,8 +304,7 @@
else
strcat(tmpbuf, "0");
}
- printf("BFS-fs: %s: lasti=%08lx <%s>\n",
- prefix, BFS_SB(s)->si_lasti, tmpbuf);
+ printf("%s: lasti=%08lx <%s>\n", prefix, BFS_SB(s)->si_lasti, tmpbuf);
free_page((unsigned long)tmpbuf);
#endif
}
@@ -322,7 +314,7 @@
struct buffer_head *bh, *sbh;
struct bfs_super_block *bfs_sb;
struct inode *inode;
- unsigned i, imap_len;
+ unsigned i;
struct bfs_sb_info *info;
int ret = -EINVAL;
unsigned long i_sblock, i_eblock, i_eoff, s_size;
@@ -332,6 +324,8 @@
return -ENOMEM;
mutex_init(&info->bfs_lock);
s->s_fs_info = info;
+ s->s_time_min = 0;
+ s->s_time_max = U32_MAX;
sb_set_blocksize(s, BFS_BSIZE);
@@ -341,8 +335,7 @@
bfs_sb = (struct bfs_super_block *)sbh->b_data;
if (le32_to_cpu(bfs_sb->s_magic) != BFS_MAGIC) {
if (!silent)
- printf("No BFS filesystem on %s (magic=%08x)\n",
- s->s_id, le32_to_cpu(bfs_sb->s_magic));
+ printf("No BFS filesystem on %s (magic=%08x)\n", s->s_id, le32_to_cpu(bfs_sb->s_magic));
goto out1;
}
if (BFS_UNCLEAN(bfs_sb, s) && !silent)
@@ -351,18 +344,16 @@
s->s_magic = BFS_MAGIC;
if (le32_to_cpu(bfs_sb->s_start) > le32_to_cpu(bfs_sb->s_end) ||
- le32_to_cpu(bfs_sb->s_start) < BFS_BSIZE) {
- printf("Superblock is corrupted\n");
+ le32_to_cpu(bfs_sb->s_start) < sizeof(struct bfs_super_block) + sizeof(struct bfs_dirent)) {
+ printf("Superblock is corrupted on %s\n", s->s_id);
goto out1;
}
- info->si_lasti = (le32_to_cpu(bfs_sb->s_start) - BFS_BSIZE) /
- sizeof(struct bfs_inode)
- + BFS_ROOT_INO - 1;
- imap_len = (info->si_lasti / 8) + 1;
- info->si_imap = kzalloc(imap_len, GFP_KERNEL | __GFP_NOWARN);
- if (!info->si_imap) {
- printf("Cannot allocate %u bytes\n", imap_len);
+ info->si_lasti = (le32_to_cpu(bfs_sb->s_start) - BFS_BSIZE) / sizeof(struct bfs_inode) + BFS_ROOT_INO - 1;
+ if (info->si_lasti == BFS_MAX_LASTI)
+ printf("NOTE: filesystem %s was created with 512 inodes, the real maximum is 511, mounting anyway\n", s->s_id);
+ else if (info->si_lasti > BFS_MAX_LASTI) {
+ printf("Impossible last inode number %lu > %d on %s\n", info->si_lasti, BFS_MAX_LASTI, s->s_id);
goto out1;
}
for (i = 0; i < BFS_ROOT_INO; i++)
@@ -372,26 +363,25 @@
inode = bfs_iget(s, BFS_ROOT_INO);
if (IS_ERR(inode)) {
ret = PTR_ERR(inode);
- goto out2;
+ goto out1;
}
s->s_root = d_make_root(inode);
if (!s->s_root) {
ret = -ENOMEM;
- goto out2;
+ goto out1;
}
info->si_blocks = (le32_to_cpu(bfs_sb->s_end) + 1) >> BFS_BSIZE_BITS;
- info->si_freeb = (le32_to_cpu(bfs_sb->s_end) + 1
- - le32_to_cpu(bfs_sb->s_start)) >> BFS_BSIZE_BITS;
+ info->si_freeb = (le32_to_cpu(bfs_sb->s_end) + 1 - le32_to_cpu(bfs_sb->s_start)) >> BFS_BSIZE_BITS;
info->si_freei = 0;
info->si_lf_eblk = 0;
/* can we read the last block? */
bh = sb_bread(s, info->si_blocks - 1);
if (!bh) {
- printf("Last block not available: %lu\n", info->si_blocks - 1);
+ printf("Last block not available on %s: %lu\n", s->s_id, info->si_blocks - 1);
ret = -EIO;
- goto out3;
+ goto out2;
}
brelse(bh);
@@ -425,11 +415,11 @@
(i_eoff != le32_to_cpu(-1) && i_eoff > s_size) ||
i_sblock * BFS_BSIZE > i_eoff) {
- printf("Inode 0x%08x corrupted\n", i);
+ printf("Inode 0x%08x corrupted on %s\n", i, s->s_id);
brelse(bh);
ret = -EIO;
- goto out3;
+ goto out2;
}
if (!di->i_ino) {
@@ -445,14 +435,12 @@
}
brelse(bh);
brelse(sbh);
- bfs_dump_imap("read_super", s);
+ bfs_dump_imap("fill_super", s);
return 0;
-out3:
+out2:
dput(s->s_root);
s->s_root = NULL;
-out2:
- kfree(info->si_imap);
out1:
brelse(sbh);
out:
@@ -482,7 +470,7 @@
int err = init_inodecache();
if (err)
goto out1;
- err = register_filesystem(&bfs_fs_type);
+ err = register_filesystem(&bfs_fs_type);
if (err)
goto out;
return 0;
--
Gitblit v1.6.2