Zfs 196 #13
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Zfs 196 #13
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… read,stateless write in user space
implementation of more zfs_file interfaces in user mode seek,flush,getattr and changes in pread,pwrite
aviksildc
commented
Jul 29, 2020
ZFSin/zfs/lib/libzpool/kernel.c
Outdated
| mbstowcs(buf, path, sizeof(buf)); | ||
| HANDLE hFile = CreateFileW( | ||
| buf, | ||
| GENERIC_READ | GENERIC_WRITE, |
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You need to set this according to flags and mode params
| wchar_t buf[PATH_MAX]; | ||
| UNICODE_STRING uniName; | ||
| mbstowcs(buf, path, sizeof(buf)); | ||
| HANDLE hFile = CreateFileW( |
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Can generic CreateFile() be used here instead?
| ); | ||
| if (hFile == INVALID_HANDLE_VALUE) | ||
| { | ||
| return E_FAIL; |
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How is E_FAIL defined? Can this be replaced with EIO? Idem for all such uses.
ZFSin/zfs/lib/libzpool/kernel.c
Outdated
| NULL | ||
| ); | ||
| if (hFile == INVALID_HANDLE_VALUE) | ||
| { |
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Follow coding guidelines.
"The opening brace ( { ) should be on the same line as the structure tag, and the
closing brace should be alone on a line in column 1."
Example:
if (condition) {
statements;
} else {
statements;
}
aviksildc
commented
Jul 30, 2020
| /*ARGSUSED*/ | ||
|
|
||
| DWORD zfs_file_off(zfs_file_t* hFile) // 1 |
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Would be good to document what the interface does, like in ZoL:
/*
* Request current file pointer offset
*
* fp - pointer to file
*
* Returns current file offset.
*/
Idem for all other interfaces.
| @@ -1,7 +1,7 @@ | |||
| | |||
| Microsoft Visual Studio Solution File, Format Version 12.00 | |||
| # Visual Studio 15 | |||
| VisualStudioVersion = 15.0.27004.2005 | |||
| # Visual Studio Version 16 | |||
| @@ -95,7 +95,6 @@ Global | |||
| {9AFC9A86-1D07-49E1-9296-F7A3979B751D}.Debug|ARM64.Deploy.0 = Debug|ARM64 | |||
| {9AFC9A86-1D07-49E1-9296-F7A3979B751D}.Debug|x64.ActiveCfg = Debug|x64 | |||
| {9AFC9A86-1D07-49E1-9296-F7A3979B751D}.Debug|x64.Build.0 = Debug|x64 | |||
| {9AFC9A86-1D07-49E1-9296-F7A3979B751D}.Debug|x64.Deploy.0 = Debug|x64 | |||
| @@ -2463,7 +2463,7 @@ static void | |||
| dump_cachefile(const char *cachefile) | |||
| { | |||
| int fd; | |||
| struct stat statbuf; | |||
| struct _stat64 statbuf; | |||
| @@ -805,7 +805,7 @@ typedef struct zpool_load_policy { | |||
| * The location of the pool configuration repository, shared between kernel and | |||
| * userland. | |||
| */ | |||
| #define ZPOOL_CACHE "/etc/zfs/zpool.cache" | |||
| #define ZPOOL_CACHE "\\SystemRoot\\System32\\drivers\\zpool.cache" | |||
| //int zfs_file_pread(zfs_file_t *fp, void *buf, size_t len, loff_t off, | ||
| // ssize_t *resid); | ||
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||
| /* |
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Check for commented sections.
| @@ -771,7 +773,7 @@ vn_open(char *path, int x1, int flags, int mode, vnode_t **vpp, int x2, int x3) | |||
| if (fd == -1) | |||
| return (errno); | |||
|
|
|||
| if (fstat_blk(fd, &st) == -1) { | |||
| if (fstat(fd, &st) == -1) { | |||
| @@ -797,7 +998,7 @@ vn_openat(char *path, int x1, int flags, int mode, vnode_t **vpp, int x2, | |||
| int ret; | |||
|
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| ASSERT(startvp == rootdir); | |||
| (void) sprintf(realpath, "/%s", path); | |||
| (void) sprintf(realpath, "%s", path); | |||
ZFSin/zfs/module/zfs/spa_config.c
Outdated
| @@ -100,7 +101,7 @@ spa_config_load(void) | |||
| (void) snprintf(pathname, MAXPATHLEN, "%s%s", | |||
| "", spa_config_path); | |||
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| file = kobj_open_file(pathname); | |||
| file = kobj_open_file("C:\\WINDOWS\\System32\\drivers\\zpool.cache"); | |||
| return -1; | ||
|
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||
| ntstatus = ZwCreateFile(&handle, | ||
| GENERIC_WRITE, |
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handle flags and mode properly
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