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-rw-r--r--fs/sysv/dir.c37
-rw-r--r--fs/sysv/file.c13
-rw-r--r--fs/sysv/inode.c3
-rw-r--r--fs/sysv/itree.c17
-rw-r--r--fs/sysv/namei.c3
-rw-r--r--fs/sysv/super.c5
6 files changed, 42 insertions, 36 deletions
diff --git a/fs/sysv/dir.c b/fs/sysv/dir.c
index a77c4215762..d42291d0821 100644
--- a/fs/sysv/dir.c
+++ b/fs/sysv/dir.c
@@ -18,12 +18,12 @@
#include <linux/swap.h>
#include "sysv.h"
-static int sysv_readdir(struct file *, void *, filldir_t);
+static int sysv_readdir(struct file *, struct dir_context *);
const struct file_operations sysv_dir_operations = {
.llseek = generic_file_llseek,
.read = generic_read_dir,
- .readdir = sysv_readdir,
+ .iterate = sysv_readdir,
.fsync = generic_file_fsync,
};
@@ -65,18 +65,21 @@ static struct page * dir_get_page(struct inode *dir, unsigned long n)
return page;
}
-static int sysv_readdir(struct file * filp, void * dirent, filldir_t filldir)
+static int sysv_readdir(struct file *file, struct dir_context *ctx)
{
- unsigned long pos = filp->f_pos;
- struct inode *inode = filp->f_path.dentry->d_inode;
+ unsigned long pos = ctx->pos;
+ struct inode *inode = file_inode(file);
struct super_block *sb = inode->i_sb;
- unsigned offset = pos & ~PAGE_CACHE_MASK;
- unsigned long n = pos >> PAGE_CACHE_SHIFT;
unsigned long npages = dir_pages(inode);
+ unsigned offset;
+ unsigned long n;
- pos = (pos + SYSV_DIRSIZE-1) & ~(SYSV_DIRSIZE-1);
+ ctx->pos = pos = (pos + SYSV_DIRSIZE-1) & ~(SYSV_DIRSIZE-1);
if (pos >= inode->i_size)
- goto done;
+ return 0;
+
+ offset = pos & ~PAGE_CACHE_MASK;
+ n = pos >> PAGE_CACHE_SHIFT;
for ( ; n < npages; n++, offset = 0) {
char *kaddr, *limit;
@@ -88,29 +91,21 @@ static int sysv_readdir(struct file * filp, void * dirent, filldir_t filldir)
kaddr = (char *)page_address(page);
de = (struct sysv_dir_entry *)(kaddr+offset);
limit = kaddr + PAGE_CACHE_SIZE - SYSV_DIRSIZE;
- for ( ;(char*)de <= limit; de++) {
+ for ( ;(char*)de <= limit; de++, ctx->pos += sizeof(*de)) {
char *name = de->name;
- int over;
if (!de->inode)
continue;
- offset = (char *)de - kaddr;
-
- over = filldir(dirent, name, strnlen(name,SYSV_NAMELEN),
- ((loff_t)n<<PAGE_CACHE_SHIFT) | offset,
+ if (!dir_emit(ctx, name, strnlen(name,SYSV_NAMELEN),
fs16_to_cpu(SYSV_SB(sb), de->inode),
- DT_UNKNOWN);
- if (over) {
+ DT_UNKNOWN)) {
dir_put_page(page);
- goto done;
+ return 0;
}
}
dir_put_page(page);
}
-
-done:
- filp->f_pos = ((loff_t)n << PAGE_CACHE_SHIFT) | offset;
return 0;
}
diff --git a/fs/sysv/file.c b/fs/sysv/file.c
index 0a65939508e..b00811c75b2 100644
--- a/fs/sysv/file.c
+++ b/fs/sysv/file.c
@@ -21,10 +21,10 @@
*/
const struct file_operations sysv_file_operations = {
.llseek = generic_file_llseek,
- .read = do_sync_read,
- .aio_read = generic_file_aio_read,
- .write = do_sync_write,
- .aio_write = generic_file_aio_write,
+ .read = new_sync_read,
+ .read_iter = generic_file_read_iter,
+ .write = new_sync_write,
+ .write_iter = generic_file_write_iter,
.mmap = generic_file_mmap,
.fsync = generic_file_fsync,
.splice_read = generic_file_splice_read,
@@ -41,9 +41,11 @@ static int sysv_setattr(struct dentry *dentry, struct iattr *attr)
if ((attr->ia_valid & ATTR_SIZE) &&
attr->ia_size != i_size_read(inode)) {
- error = vmtruncate(inode, attr->ia_size);
+ error = inode_newsize_ok(inode, attr->ia_size);
if (error)
return error;
+ truncate_setsize(inode, attr->ia_size);
+ sysv_truncate(inode);
}
setattr_copy(inode, attr);
@@ -52,7 +54,6 @@ static int sysv_setattr(struct dentry *dentry, struct iattr *attr)
}
const struct inode_operations sysv_file_inode_operations = {
- .truncate = sysv_truncate,
.setattr = sysv_setattr,
.getattr = sysv_getattr,
};
diff --git a/fs/sysv/inode.c b/fs/sysv/inode.c
index c327d4ee123..88956309cc8 100644
--- a/fs/sysv/inode.c
+++ b/fs/sysv/inode.c
@@ -60,6 +60,7 @@ static int sysv_remount(struct super_block *sb, int *flags, char *data)
{
struct sysv_sb_info *sbi = SYSV_SB(sb);
+ sync_filesystem(sb);
if (sbi->s_forced_ro)
*flags |= MS_RDONLY;
return 0;
@@ -295,7 +296,7 @@ int sysv_sync_inode(struct inode *inode)
static void sysv_evict_inode(struct inode *inode)
{
- truncate_inode_pages(&inode->i_data, 0);
+ truncate_inode_pages_final(&inode->i_data);
if (!inode->i_nlink) {
inode->i_size = 0;
sysv_truncate(inode);
diff --git a/fs/sysv/itree.c b/fs/sysv/itree.c
index 90b54b43878..66bc316927e 100644
--- a/fs/sysv/itree.c
+++ b/fs/sysv/itree.c
@@ -464,6 +464,16 @@ int sysv_prepare_chunk(struct page *page, loff_t pos, unsigned len)
return __block_write_begin(page, pos, len, get_block);
}
+static void sysv_write_failed(struct address_space *mapping, loff_t to)
+{
+ struct inode *inode = mapping->host;
+
+ if (to > inode->i_size) {
+ truncate_pagecache(inode, inode->i_size);
+ sysv_truncate(inode);
+ }
+}
+
static int sysv_write_begin(struct file *file, struct address_space *mapping,
loff_t pos, unsigned len, unsigned flags,
struct page **pagep, void **fsdata)
@@ -471,11 +481,8 @@ static int sysv_write_begin(struct file *file, struct address_space *mapping,
int ret;
ret = block_write_begin(mapping, pos, len, flags, pagep, get_block);
- if (unlikely(ret)) {
- loff_t isize = mapping->host->i_size;
- if (pos + len > isize)
- vmtruncate(mapping->host, isize);
- }
+ if (unlikely(ret))
+ sysv_write_failed(mapping, pos + len);
return ret;
}
diff --git a/fs/sysv/namei.c b/fs/sysv/namei.c
index 1c0d5f26476..731b2bbcaab 100644
--- a/fs/sysv/namei.c
+++ b/fs/sysv/namei.c
@@ -27,8 +27,7 @@ static int add_nondir(struct dentry *dentry, struct inode *inode)
return err;
}
-static int sysv_hash(const struct dentry *dentry, const struct inode *inode,
- struct qstr *qstr)
+static int sysv_hash(const struct dentry *dentry, struct qstr *qstr)
{
/* Truncate the name in place, avoids having to define a compare
function. */
diff --git a/fs/sysv/super.c b/fs/sysv/super.c
index a38e87bdd78..eda10959714 100644
--- a/fs/sysv/super.c
+++ b/fs/sysv/super.c
@@ -487,6 +487,7 @@ static int v7_fill_super(struct super_block *sb, void *data, int silent)
sbi->s_sb = sb;
sbi->s_block_base = 0;
sbi->s_type = FSTYPE_V7;
+ mutex_init(&sbi->s_lock);
sb->s_fs_info = sbi;
sb_set_blocksize(sb, 512);
@@ -545,6 +546,7 @@ static struct file_system_type sysv_fs_type = {
.kill_sb = kill_block_super,
.fs_flags = FS_REQUIRES_DEV,
};
+MODULE_ALIAS_FS("sysv");
static struct file_system_type v7_fs_type = {
.owner = THIS_MODULE,
@@ -553,6 +555,8 @@ static struct file_system_type v7_fs_type = {
.kill_sb = kill_block_super,
.fs_flags = FS_REQUIRES_DEV,
};
+MODULE_ALIAS_FS("v7");
+MODULE_ALIAS("v7");
static int __init init_sysv_fs(void)
{
@@ -586,5 +590,4 @@ static void __exit exit_sysv_fs(void)
module_init(init_sysv_fs)
module_exit(exit_sysv_fs)
-MODULE_ALIAS("v7");
MODULE_LICENSE("GPL");
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-10 07:08:31 +0000