Hi
I am attaching a test cases written for testing fallocate() system
call. Please go through the tests and let us know of your opinion.
A few points I wanted to put forth.
o It needs to be executed from a folder that has EXT4 partition.
else it will come out with error
o __NR_FALLOCATE needs to be declared under
include/linux_syscall_numbers.h
Some of the architecture specific values:
x86 324
x86_64 324
ia64 1303
s390 314
Thanks
Yeehaw
/******************************************************************************
* fallocate01.c
* Mon Dec 24 2007
* Copyright (c) International Business Machines Corp., 2007
* Emali : [EMAIL PROTECTED]
******************************************************************************/
/***************************************************************************
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Library General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
***************************************************************************/
/*****************************************************************************
*
* OS Test - International Business Machines Corp. 2007.
*
* TEST IDENTIFIER : fallocate01
*
* EXECUTED BY : anyone
*
* TEST TITLE : Basic test for fallocate()
*
* TEST CASE TOTAL : 2
*
* CPU ARCHITECTURES : PPC,X86, X86_64
*
* AUTHOR : Sharyathi Nagesh
*
* CO-PILOT :
*
* DATE STARTED : 24/12/2007
*
* TEST CASES
* (Working of fallocate under 2 modes)
* 1) DEFAULT 2)FALLOC_FL_KEEP_SIZE
*
* INPUT SPECIFICATIONS
* No input needs to be specified
* fallocate() in puts are generated randomly
*
* OUTPUT SPECIFICATIONS
* Output describing whether test cases passed or failed.
*
* ENVIRONMENTAL NEEDS
* Test Needs to be executed on file system supporting ext4
* LTP {TMP} Needs to be set to such a folder
*
* SPECIAL PROCEDURAL REQUIREMENTS
* None
*
* DETAILED DESCRIPTION
* This is a test case for fallocate() system call.
* This test suite tests basic working of fallocate under different modes
* It trys to fallocate memory blocks and write into that block
*
* Total 2 Test Cases :-
* (1) Test Case for DEFAULT MODE
* (2) Test Case for FALLOC_FL_KEEP_SIZE
*
* Setup:
* Setup file on which fallocate is to be called
* Set up 2 files for each mode
*
* Test:
* Loop if the proper options are given.
* Execute system call
* Check return code, if system call did fail
* lseek to some random location with in allocate block
* write data into the locattion Report if any error encountered
* PASS the test otherwise
*
* Cleanup:
* Cleanup the temporary folder
*
*************************************************************************/
/* Standard Include Files */
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <fcntl.h>
#include <sys/syscall.h>
#include <unistd.h>
#include <error.h>
/* Harness Specific Include Files. */
#include "test.h"
#include "usctest.h"
#define BLOCKS_WRITTEN 12
#ifndef __NR_FALLOCATE
# define __NR_FALLOCATE -1 //Dummy Value
int arch_support = 0; //Architecure is not supported
#else
int arch_support = 1; //Architecture is supported
#endif
int TST_TOTAL ;
int block_size;
int buf_size;
void get_blocksize(int);
void populate_files(int fd);
void runtest(int,int,loff_t);
/* Extern Global Variables */
extern int Tst_count; /* counter for tst_xxx routines. */
/* Global Variables */
char *TCID = "fallocate01"; /* test program identifier. */
char fname_mode1[255], fname_mode2[255]; /* Files used for testing */
int fd_mode1, fd_mode2;
/******************************************************************************
* Performs all one time clean up for this test on successful
* completion, premature exit or failure. Closes all temporary
* files, removes all temporary directories exits the test with
* appropriate return code by calling tst_exit() function.
******************************************************************************/
extern void
cleanup()
{
/* Close all open file descriptors. */
if(close(fd_mode1) == -1)
{
tst_resm(TWARN, "close(%s) Failed, errno=%d : %s",
fname_mode1, errno, strerror(errno));
}
if(close(fd_mode2) == -1)
{
tst_resm(TWARN, "close(%s) Failed, errno=%d : %s",
fname_mode2, errno, strerror(errno));
}
//remove tem directory and all the files in it
tst_rmdir();
//Exit with appropriate return code
tst_exit();
}
/*****************************************************************************
* Performs all one time setup for this test. This function is
* used to create temporary dirs and temporary files
* that may be used in the course of this test
******************************************************************************/
void
setup()
{
/* Create temporary directories */
TEST_PAUSE;
tst_tmpdir();
sprintf(fname_mode1,"tfile_mode1_%d",getpid());
if ((fd_mode1 = open(fname_mode1, O_RDWR|O_CREAT, 0700)) == -1 )
{
tst_brkm(TBROK, cleanup, "Unable to open %s for read/write. Error:%d, %s\n", \
fname_mode1, errno, strerror(errno));
}
get_blocksize(fd_mode1);
populate_files(fd_mode1);
sprintf(fname_mode2,"tfile_mode2_%d",getpid());
if ((fd_mode2 = open(fname_mode2, O_RDWR|O_CREAT, 0700)) == -1 )
{
tst_brkm(TBROK, cleanup, "Unable to open %s for read/write. Error:%d, %s\n", \
fname_mode2, errno, strerror(errno));
}
populate_files(fd_mode2);
}
/*****************************************************************************
* Gets the block size for the file system
******************************************************************************/
void
get_blocksize(int fd)
{
struct stat file_stat;
if( fstat(fd, &file_stat) < 0 )
tst_resm(TFAIL, "fstat failed while getting block_size errno=%d : %s",
TEST_ERRNO, strerror(TEST_ERRNO));
block_size = (int) file_stat.st_blksize;
buf_size = block_size;
}
/*****************************************************************************
* Writes data into the file
******************************************************************************/
void
populate_files(int fd)
{
char buf[buf_size + 1];
char *fname;
int index;
int blocks;
int data;
if( fd == fd_mode1 )
fname = fname_mode1;
else
fname = fname_mode2;
for (blocks = 0; blocks < BLOCKS_WRITTEN ; blocks++)
{
for (index = 0; index < buf_size; index++)
buf[index] = 'A' + (index % 26);
buf[buf_size]='\0';
if (( data = write(fd, buf, buf_size)) < 0 )
{
tst_brkm(TBROK, cleanup, "Unable to write to %s. Error: %d, %s", \
fname,errno, strerror(errno));
}
}
}
int
main(int argc, /* number of command line parameters */
char **argv) /* pointer to the array of the command line parameters. */
{
int fd;
enum {DEFAULT, FALLOC_FL_KEEP_SIZE} mode;
loff_t expected_size;
int lc;
TST_TOTAL = 2;
/* perform global test setup, call setup() function. */
/* This test needs kernel version > 2.6.23 and
* either of x86, x86_64 or ppc architecture
*/
if ( !arch_support || (tst_kvercmp(2,6,23) < 0)) {
tst_resm(TWARN," System doesn't support execution of the test");
exit(0);
}
setup();
for (lc=0; TEST_LOOPING(lc); lc++) {
/* reset Tst_count in case we are looping. */
Tst_count=0;
for ( mode = DEFAULT; mode <= FALLOC_FL_KEEP_SIZE; mode++)
{
switch(mode){
case DEFAULT: fd = fd_mode1;
expected_size = BLOCKS_WRITTEN * block_size + block_size;
break;
case FALLOC_FL_KEEP_SIZE: fd = fd_mode2;
expected_size = BLOCKS_WRITTEN * block_size;
break;
}
runtest(mode, fd, expected_size);
}
}
cleanup();
return(0);
}
/*****************************************************************************
* Calls the system call, with appropriate parameters and writes data
******************************************************************************/
void
runtest(int mode, int fd, loff_t expected_size)
{
loff_t offset;
loff_t len = block_size;
loff_t write_offset, lseek_offset;
offset = lseek(fd,0,SEEK_END);
struct stat file_stat;
errno = 0;
TEST(syscall(__NR_FALLOCATE, fd, mode, offset,len));
/* check return code */
if ( TEST_RETURN != 0 ) {
TEST_ERROR_LOG(TEST_ERRNO);
tst_resm(TFAIL, "fallocate(%d, %d, %lld, %lld) Failed, errno=%d : %s",
fd, mode, offset, len, TEST_ERRNO, strerror(TEST_ERRNO));
return ;
} else {
if ( STD_FUNCTIONAL_TEST ) {
/* No Verification test, yet... */
tst_resm(TPASS, "fallocate(%d, %d, %lld, %lld) returned %d ",
fd, mode, offset, len, TEST_RETURN);
}
}
if( fstat(fd, &file_stat) < 0 )
tst_resm(TFAIL, "fstat failed after fallocate() errno=%d : %s",
TEST_ERRNO, strerror(TEST_ERRNO));
if ( file_stat.st_size != expected_size)
tst_resm(TFAIL, "fstat test fails on fallocate (%d, %d, %lld, %lld) Failed on mode:%d, errno=%d : %s",
fd, mode, offset,len, TEST_ERRNO, strerror(TEST_ERRNO));
write_offset = random() % len;
lseek_offset = lseek(fd,write_offset,SEEK_CUR);
if ( lseek_offset != offset + write_offset)
{
tst_resm(TFAIL, "lseek fails in fallocate(%d, %d, %lld, %lld) Failed, errno=%d : %s",
fd,mode, offset,len, TEST_ERRNO, strerror(TEST_ERRNO));
return;
}
//Write a character to file at random location
TEST(write(fd,"A",1));
/* check return code */
if ( TEST_RETURN == -1 ) {
TEST_ERROR_LOG(TEST_ERRNO);
tst_resm(TFAIL, "write fails in fallocate(%d, %d, %lld, %lld) Failed, errno=%d : %s",
fd,mode, offset, len, TEST_ERRNO, strerror(TEST_ERRNO));
} else {
if ( STD_FUNCTIONAL_TEST ) {
/* No Verification test, yet... */
tst_resm(TPASS, "write operation on fallocated(%d, %d, %lld, %lld) returned %d ",
fd,mode, offset,len, TEST_RETURN);
}
}
}
/******************************************************************************
* fallocate02.c
* Mon Dec 24 2007
* Copyright (c) International Business Machines Corp., 2007
* Emali : [EMAIL PROTECTED]
******************************************************************************/
/***************************************************************************
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Library General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
***************************************************************************/
/*****************************************************************************
*
* OS Test - International Business Machines Corp. 2007.
*
* TEST IDENTIFIER : fallocate02
*
* EXECUTED BY : anyone
*
* TEST TITLE : Checks for Errors from fallocate()
*
* TEST CASE TOTAL : 7
*
* CPU ARCHITECTURES : PPC,X86, X86_64
*
* AUTHOR : Sharyathi Nagesh
*
* CO-PILOT :
*
* DATE STARTED : 24/12/2007
*
* TEST CASES
* (Tests fallocate() for different test cases as reported in map page)
*
* INPUT SPECIFICATIONS
* No input needs to be specified
* fallocate() in-puts are specified through test_data
*
* OUTPUT SPECIFICATIONS
* fallocate Error message matches with the expected error message.
*
* ENVIRONMENTAL NEEDS
* Test Needs to be executed on file system supporting ext4
* LTP {TMP} Needs to be set to such a folder
*
* SPECIAL PROCEDURAL REQUIREMENTS
* None
*
* DETAILED DESCRIPTION
* This is a test case for fallocate() system call.
* This test suite tests various error messages from fallocate
* If the error message received matches with the expected
* test is considered passed else test fails
* Provided TEST_DEFAULT to switch b/w modes
*
* Total 7 Test Cases :-
* Various error messages from the man page
*
* Setup:
* Setup files on which fallocate is to be called
*
* Test:
* Loop if the proper options are given.
* Execute system call
* Check return code.
* If error obtained matches with the expected error
* PASS the test, otherwise TEST FAILS
* Provided TEST_DEFAULT to switch b/w modes
*
* Cleanup:
* Cleanup the temporary folder
*
*************************************************************************/
/* Standard Include Files */
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <fcntl.h>
/* Harness Specific Include Files. */
#include "test.h"
#include "usctest.h"
#define BLOCKS_WRITTEN 12
#ifdef TEST_DEFAULT
#define DEFAULT_TEST_MODE 0 //DEFAULT MODE
#else
#define DEFAULT_TEST_MODE 1 //FALLOC_FL_KEEP_SIZE MODE
#endif
#ifndef __NR_FALLOCATE
# define __NR_FALLOCATE -1 //Dummy Value
int arch_support = 0;
#else
int arch_support = 1;
#endif
#define OFFSET 12
enum {RFILE,WFILE,PIPE,FIFO};
struct test_data_t
{
int file;
int mode;
loff_t offset;
loff_t len;
int error;
} test_data[] = {
{RFILE, DEFAULT_TEST_MODE, 0, 1, EBADF},
{WFILE, DEFAULT_TEST_MODE, -1, 1, EINVAL},
{WFILE, DEFAULT_TEST_MODE, 1, -1, EINVAL},
{WFILE, DEFAULT_TEST_MODE, BLOCKS_WRITTEN, 0, EINVAL},
{WFILE, DEFAULT_TEST_MODE, BLOCKS_WRITTEN, -1, EINVAL},
{WFILE, DEFAULT_TEST_MODE,-( BLOCKS_WRITTEN + OFFSET ), 1 , EINVAL},
{WFILE, DEFAULT_TEST_MODE, BLOCKS_WRITTEN - OFFSET, 1 , 0}
};
int TST_TOTAL = sizeof(test_data)/sizeof(test_data[0]); /* total number of tests in this file. */
int block_size;
int buf_size;
void populate_file();
void create_fifo();
void create_pipe();
void get_blocksize(int fd);
/* Extern Global Variables */
extern int Tst_count; /* counter for tst_xxx routines. */
/* Global Variables */
char *TCID = "fallocate02"; /* test program identifier. */
char fnamew[255]; /* Files used for testing */
char fnamer[255]; /* Files used for testing */
int fdw;
int fdr;
/******************************************************************************
* Performs all one time clean up for this test on successful
* completion, premature exit or failure. Closes all temporary
* files, removes all temporary directories exits the test with
* appropriate return code by calling tst_exit() function.
******************************************************************************/
extern void
cleanup()
{
/* Close all open file descriptors. */
if(close(fdw) == -1)
{
tst_resm(TWARN, "close(%s) Failed, errno=%d : %s",
fnamew, errno, strerror(errno));
}
if(close(fdr) == -1)
{
tst_resm(TWARN, "close(%s) Failed, errno=%d : %s",
fnamer, errno, strerror(errno));
}
/* Remove tmp dir and all files in it */
tst_rmdir();
/* Exit with appropriate return code. */
tst_exit();
}
/*****************************************************************************
* Performs all one time setup for this test. This function is
* used to create temporary dirs and temporary files
* that may be used in the course of this test
******************************************************************************/
void
setup()
{
/* capture signals */
tst_sig(FORK, DEF_HANDLER, cleanup);
/* Pause if that option was specified */
TEST_PAUSE;
/* make a temp directory and cd to it */
tst_tmpdir();
sprintf(fnamer,"tfile_read_%d",getpid());
sprintf(fnamew,"tfile_write_%d",getpid());
if ((fdr = open(fnamer,O_RDONLY|O_CREAT,S_IRUSR)) == -1) {
tst_brkm(TBROK, cleanup, "open(%s,O_RDONLY|O_CREAT,S_IRUSR) Failed, errno=%d : %s",
fnamer, errno, strerror(errno));
}
if ((fdw = open(fnamew,O_RDWR|O_CREAT,S_IRWXU)) == -1) {
tst_brkm(TBROK, cleanup, "open(%s,O_RDWR|O_CREAT,S_IRWXU) Failed, errno=%d : %s",
fnamew, errno, strerror(errno));
}
get_blocksize(fdr);
populate_file();
}
/*****************************************************************************
* Gets the block size for the file system
******************************************************************************/
void
get_blocksize(int fd)
{
struct stat file_stat;
if( fstat(fd, &file_stat) < 0 )
tst_resm(TFAIL, "fstat failed while getting block_size errno=%d : %s",
TEST_ERRNO, strerror(TEST_ERRNO));
block_size = (int) file_stat.st_blksize;
buf_size = block_size;
}
/*****************************************************************************
* Writes data into the file
******************************************************************************/
void
populate_file()
{
char buf[buf_size + 1];
int index;
int blocks;
int data;
for (blocks = 0; blocks < BLOCKS_WRITTEN ; blocks++)
{
for (index = 0; index < buf_size; index++)
buf[index] = 'A' + (index % 26);
buf[buf_size]='\0';
if (( data = write(fdw, buf, buf_size)) < 0 )
{
tst_brkm(TBROK, cleanup, "Unable to write to %s. Error: %d, %s", \
fnamew,errno, strerror(errno));
}
}
}
/*****************************************************************************
* Main function that calls the system call with the appropriate parameters
******************************************************************************/
int
main(int argc, /* number of command line parameters */
char **argv) /* pointer to the array of the command line parameters. */
{
int test_index = 0;
int lc;
int fd;
char fname[255];
/* parse options. - Currently none */
/* This test needs kernel version > 2.6.23 and
* either of x86, x86_64 or ppc architecture
*/
if ( !arch_support || (tst_kvercmp(2,6,23) < 0)) {
tst_resm(TWARN," System doesn't support execution of the test");
exit(0);
}
/* perform global test setup, call setup() function. */
setup();
for (lc=0; TEST_LOOPING(lc); lc++) {
/* reset Tst_count in case we are looping. */
Tst_count=0;
for(test_index = 0 ; test_index < TST_TOTAL; test_index ++)
{
switch(test_data[test_index].file){
case RFILE: fd = fdr;
strcpy(fname,fnamer);
break;
case WFILE: fd = fdw;
strcpy(fname,fnamew);
break;
}
TEST(syscall(__NR_FALLOCATE, fd, test_data[test_index].mode,
test_data[test_index].offset * block_size, test_data[test_index].len * block_size));
/* check return code */
if ( TEST_ERRNO != test_data[test_index].error ) {
TEST_ERROR_LOG(TEST_ERRNO);
tst_resm(TFAIL, "fallocatee(%s:%d, %d, %lld, %lld) Failed, expected errno:%d \
instead errno=%d : %s", fname, fd,test_data[test_index].mode,
test_data[test_index].offset * block_size, test_data[test_index].len * block_size,
test_data[test_index].error, TEST_ERRNO, strerror(TEST_ERRNO));
} else {
/* No Verification test, yet... */
tst_resm(TPASS, "fallocatee(%s:%d, %d, %lld, %lld) returned %d ",
fname, fd,test_data[test_index].mode, test_data[test_index].offset * block_size,
test_data[test_index].len * block_size, TEST_ERRNO);
}
}
}
cleanup();
return(0);
}
/******************************************************************************
* fallocate03.c
* Mon Dec 24 2007
* Copyright (c) International Business Machines Corp., 2007
* Emali : [EMAIL PROTECTED]
******************************************************************************/
/***************************************************************************
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Library General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
***************************************************************************/
/*****************************************************************************
*
* OS Test - International Business Machines Corp. 2007.
*
* TEST IDENTIFIER : fallocate03
*
* EXECUTED BY : anyone
*
* TEST TITLE : fallocate
*
* TEST CASE TOTAL : 8
*
* CPU ARCHITECTURES : PPC,X86, X86_64
*
* AUTHOR : Sharyathi Nagesh
*
* CO-PILOT :
*
* DATE STARTED : 24/12/2007
*
* TEST CASES
* (Working of fallocate on a sparse file)
*
*
* INPUT SPECIFICATIONS
* No input needs to be specified
* fallocate() in-puts are specified through test_data
*
* OUTPUT SPECIFICATIONS
* Output describing whether test cases passed or failed.
*
* ENVIRONMENTAL NEEDS
* Test Needs to be executed on file system supporting ext4
* LTP {TMP} Needs to be set to such a folder
*
* SPECIAL PROCEDURAL REQUIREMENTS
* None
*
* DETAILED DESCRIPTION
* This is a test case for fallocate() system call.
* This test suite tests working of fallocate on sparse file
* fallocate is tested for different offsets
*
* Total 8 Test Cases :-
* Different offsets with in a sparse file is tested
*
* Setup:
* Setup file on which fallocate is to be called
* Set up a file with hole, created through lseek
*
* Test:
* Loop if the proper options are given
* Execute system call
* Check return code, if system call failed
* TEST fails, PASS the test otherwise
*
* Cleanup:
* Cleanup the temporary folder
*
*************************************************************************/
/* Standard Include Files */
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <sys/stat.h>
#include <sys/types.h> //Can be done with out
#include <fcntl.h>
#include <unistd.h>
/* Harness Specific Include Files. */
#include "test.h"
#include "usctest.h"
#define BLOCKS_WRITTEN 12
#define HOLE_SIZE_IN_BLOCKS 12
#define DEFAULT_MODE 0
#define FALLOC_FL_KEEP_SIZE 1 //Need to be removed once the glibce support is provided
#define TRUE 0
#ifndef __NR_FALLOCATE
# define __NR_FALLOCATE -1 //Dummy Value
int arch_support = 0;
#else
int arch_support = 1;
#endif
struct test_data_t
{
int mode;
loff_t offset;
loff_t len;
int error;
}test_data[] = {
{DEFAULT_MODE, 2, 1, TRUE},
{DEFAULT_MODE, BLOCKS_WRITTEN, 1, TRUE},
{DEFAULT_MODE, BLOCKS_WRITTEN + HOLE_SIZE_IN_BLOCKS/2 -1 , 1, TRUE},
{DEFAULT_MODE, BLOCKS_WRITTEN + HOLE_SIZE_IN_BLOCKS + 1 , 1, TRUE},
{FALLOC_FL_KEEP_SIZE,2, 1, TRUE},
{FALLOC_FL_KEEP_SIZE, BLOCKS_WRITTEN , 1, TRUE},
{FALLOC_FL_KEEP_SIZE, BLOCKS_WRITTEN + HOLE_SIZE_IN_BLOCKS/2 + 1 , 1, TRUE},
{FALLOC_FL_KEEP_SIZE, BLOCKS_WRITTEN + HOLE_SIZE_IN_BLOCKS + 2 , 1, TRUE}
};
int TST_TOTAL = sizeof(test_data)/sizeof(test_data[0]); /* total number of tests in this file. */
int block_size;
int buf_size;
void get_blocksize(int);
void populate_file();
void file_seek(off_t);
/* Extern Global Variables */
extern int Tst_count; /* counter for tst_xxx routines. */
/* Global Variables */
char *TCID = "fallocate03"; /* test program identifier. */
char fname[255];
int fd;
/******************************************************************************
* Performs all one time clean up for this test on successful
* completion, premature exit or failure. Closes all temporary
* files, removes all temporary directories exits the test with
* appropriate return code by calling tst_exit() function.
******************************************************************************/
extern void
cleanup()
{
/* Close all open file descriptors. */
if(close(fd) == -1)
{
tst_resm(TWARN, "close(%s) Failed, errno=%d : %s",
fname, errno, strerror(errno));
}
/* Remove tmp dir and all files in it */
tst_rmdir();
/* Exit with appropriate return code. */
tst_exit();
}
/*****************************************************************************
* Performs all one time setup for this test. This function is
* used to create temporary dirs and temporary files
* that may be used in the course of this test
******************************************************************************/
void
setup()
{
/* Create temporary directories */
TEST_PAUSE;
tst_tmpdir();
sprintf(fname,"tfile_sparse_%d",getpid());
if ((fd = open(fname, O_RDWR|O_CREAT, 0700)) == -1 )
{
tst_brkm(TBROK, cleanup, "Unable to open %s for read/write. Error:%d, %s\n", \
fname, errno, strerror(errno));
}
get_blocksize(fd);
populate_file();
file_seek(BLOCKS_WRITTEN + HOLE_SIZE_IN_BLOCKS); //create holes
populate_file();
file_seek(0); //Rewind
}
/*****************************************************************************
* Gets the block size for the file system
******************************************************************************/
void
get_blocksize(int fd)
{
struct stat file_stat;
if( fstat(fd, &file_stat) < 0 )
tst_resm(TFAIL, "fstat failed while getting block_size errno=%d : %s",
TEST_ERRNO, strerror(TEST_ERRNO));
block_size = (int) file_stat.st_blksize;
buf_size = block_size;
}
/*****************************************************************************
* Create a Hole in the file
******************************************************************************/
void
file_seek(off_t offset)
{
offset *= block_size;
lseek(fd,offset,SEEK_SET);
}
/*****************************************************************************
* Writes data into the file
******************************************************************************/
void
populate_file()
{
char buf[buf_size + 1];
int index;
int blocks;
int data;
for (blocks = 0; blocks < BLOCKS_WRITTEN ; blocks++)
{
for (index = 0; index < buf_size; index++)
buf[index] = 'A' + (index % 26);
buf[buf_size]='\0';
if (( data = write(fd, buf, buf_size)) < 0 )
{
tst_brkm(TBROK, cleanup, "Unable to write to %s. Error: %d, %s", \
fname,errno, strerror(errno));
}
}
}
/*****************************************************************************
* Main function that calls the system call with the appropriate parameters
******************************************************************************/
int
main(int argc, /* number of command line parameters */
char **argv) /* pointer to the array of the command line parameters. */
{
int test_index = 0;
int lc;
/* parse options. - Currently none */
/* This test needs kernel version > 2.6.23 and
* either of x86, x86_64 or ppc architecture
*/
if ( !arch_support || (tst_kvercmp(2,6,23) < 0)) {
tst_resm(TWARN," System doesn't support execution of the test");
exit(0);
}
/* perform global test setup, call setup() function. */
setup();
for (lc=0; TEST_LOOPING(lc); lc++) {
/* reset Tst_count in case we are looping. */
Tst_count=0;
for(test_index = 0 ; test_index < TST_TOTAL; test_index ++)
{
TEST(syscall(__NR_FALLOCATE, fd, test_data[test_index].mode,
test_data[test_index].offset * block_size, test_data[test_index].len * block_size));
/* check return code */
if ( TEST_RETURN != test_data[test_index].error ) {
TEST_ERROR_LOG(TEST_ERRNO);
tst_resm(TFAIL, "fallocatee(%s, %d, %lld, %lld) Failed, errno=%d : %s",
fname,test_data[test_index].mode, test_data[test_index].offset * block_size,
test_data[test_index].len * block_size, TEST_ERRNO, strerror(TEST_ERRNO));
} else {
if ( STD_FUNCTIONAL_TEST ) {
/* No Verification test, yet... */
tst_resm(TPASS, "fallocatee(%s, %d, %lld, %lld) returned %d ",
fname,test_data[test_index].mode, test_data[test_index].offset * block_size,
test_data[test_index].len * block_size, TEST_RETURN); }
}
}
}
cleanup();
return(0);
}
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