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ROUND_UP macro cleanup in fs/(select|compat|readdir).c
ROUND_UP macro cleanup use,ALIGN or DIV_ROUND_UP where ever appropriate. Signed-off-by: Milind Arun Choudhary <milindchoudhary@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Milind Arun Choudhary
Linus Torvalds
parent
10f8a59813
commit
022a169244
3 changed files with 15 additions and 21 deletions
20
fs/compat.c
20
fs/compat.c
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@ -15,6 +15,7 @@
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* published by the Free Software Foundation.
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*/
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#include <linux/kernel.h>
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#include <linux/linkage.h>
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#include <linux/compat.h>
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#include <linux/errno.h>
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@ -902,8 +903,6 @@ asmlinkage long compat_sys_mount(char __user * dev_name, char __user * dir_name,
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}
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#define NAME_OFFSET(de) ((int) ((de)->d_name - (char __user *) (de)))
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#define COMPAT_ROUND_UP(x) (((x)+sizeof(compat_long_t)-1) & \
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~(sizeof(compat_long_t)-1))
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struct compat_old_linux_dirent {
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compat_ulong_t d_ino;
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@ -991,7 +990,7 @@ static int compat_filldir(void *__buf, const char *name, int namlen,
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struct compat_linux_dirent __user * dirent;
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struct compat_getdents_callback *buf = __buf;
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compat_ulong_t d_ino;
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int reclen = COMPAT_ROUND_UP(NAME_OFFSET(dirent) + namlen + 2);
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int reclen = ALIGN(NAME_OFFSET(dirent) + namlen + 2, sizeof(compat_long_t));
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buf->error = -EINVAL; /* only used if we fail.. */
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if (reclen > buf->count)
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@ -1066,7 +1065,6 @@ out:
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}
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#ifndef __ARCH_OMIT_COMPAT_SYS_GETDENTS64
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#define COMPAT_ROUND_UP64(x) (((x)+sizeof(u64)-1) & ~(sizeof(u64)-1))
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struct compat_getdents_callback64 {
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struct linux_dirent64 __user *current_dir;
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@ -1081,7 +1079,7 @@ static int compat_filldir64(void * __buf, const char * name, int namlen, loff_t
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struct linux_dirent64 __user *dirent;
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struct compat_getdents_callback64 *buf = __buf;
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int jj = NAME_OFFSET(dirent);
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int reclen = COMPAT_ROUND_UP64(jj + namlen + 1);
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int reclen = ALIGN(jj + namlen + 1, sizeof(u64));
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u64 off;
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buf->error = -EINVAL; /* only used if we fail.. */
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@ -1594,8 +1592,6 @@ out_ret:
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#define __COMPAT_NFDBITS (8 * sizeof(compat_ulong_t))
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#define ROUND_UP(x,y) (((x)+(y)-1)/(y))
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/*
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* Ooo, nasty. We need here to frob 32-bit unsigned longs to
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* 64-bit unsigned longs.
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@ -1604,7 +1600,7 @@ static
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int compat_get_fd_set(unsigned long nr, compat_ulong_t __user *ufdset,
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unsigned long *fdset)
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{
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nr = ROUND_UP(nr, __COMPAT_NFDBITS);
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nr = DIV_ROUND_UP(nr, __COMPAT_NFDBITS);
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if (ufdset) {
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unsigned long odd;
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@ -1638,7 +1634,7 @@ int compat_set_fd_set(unsigned long nr, compat_ulong_t __user *ufdset,
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unsigned long *fdset)
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{
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unsigned long odd;
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nr = ROUND_UP(nr, __COMPAT_NFDBITS);
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nr = DIV_ROUND_UP(nr, __COMPAT_NFDBITS);
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if (!ufdset)
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return 0;
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@ -1760,7 +1756,7 @@ asmlinkage long compat_sys_select(int n, compat_ulong_t __user *inp,
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if ((u64)tv.tv_sec >= (u64)MAX_INT64_SECONDS)
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timeout = -1; /* infinite */
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else {
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timeout = ROUND_UP(tv.tv_usec, 1000000/HZ);
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timeout = DIV_ROUND_UP(tv.tv_usec, 1000000/HZ);
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timeout += tv.tv_sec * HZ;
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}
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}
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@ -1828,7 +1824,7 @@ asmlinkage long compat_sys_pselect7(int n, compat_ulong_t __user *inp,
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do {
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if (tsp) {
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if ((unsigned long)ts.tv_sec < MAX_SELECT_SECONDS) {
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timeout = ROUND_UP(ts.tv_nsec, 1000000000/HZ);
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timeout = DIV_ROUND_UP(ts.tv_nsec, 1000000000/HZ);
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timeout += ts.tv_sec * (unsigned long)HZ;
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ts.tv_sec = 0;
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ts.tv_nsec = 0;
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@ -1924,7 +1920,7 @@ asmlinkage long compat_sys_ppoll(struct pollfd __user *ufds,
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/* We assume that ts.tv_sec is always lower than
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the number of seconds that can be expressed in
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an s64. Otherwise the compiler bitches at us */
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timeout = ROUND_UP(ts.tv_nsec, 1000000000/HZ);
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timeout = DIV_ROUND_UP(ts.tv_nsec, 1000000000/HZ);
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timeout += ts.tv_sec * HZ;
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}
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@ -4,6 +4,7 @@
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* Copyright (C) 1995 Linus Torvalds
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/time.h>
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#include <linux/mm.h>
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@ -51,7 +52,6 @@ EXPORT_SYMBOL(vfs_readdir);
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* case (the low-level handlers don't need to care about this).
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*/
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#define NAME_OFFSET(de) ((int) ((de)->d_name - (char __user *) (de)))
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#define ROUND_UP(x) (((x)+sizeof(long)-1) & ~(sizeof(long)-1))
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#ifdef __ARCH_WANT_OLD_READDIR
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@ -146,7 +146,7 @@ static int filldir(void * __buf, const char * name, int namlen, loff_t offset,
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struct linux_dirent __user * dirent;
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struct getdents_callback * buf = (struct getdents_callback *) __buf;
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unsigned long d_ino;
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int reclen = ROUND_UP(NAME_OFFSET(dirent) + namlen + 2);
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int reclen = ALIGN(NAME_OFFSET(dirent) + namlen + 2, sizeof(long));
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buf->error = -EINVAL; /* only used if we fail.. */
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if (reclen > buf->count)
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@ -219,8 +219,6 @@ out:
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return error;
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}
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#define ROUND_UP64(x) (((x)+sizeof(u64)-1) & ~(sizeof(u64)-1))
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struct getdents_callback64 {
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struct linux_dirent64 __user * current_dir;
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struct linux_dirent64 __user * previous;
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@ -233,7 +231,7 @@ static int filldir64(void * __buf, const char * name, int namlen, loff_t offset,
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{
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struct linux_dirent64 __user *dirent;
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struct getdents_callback64 * buf = (struct getdents_callback64 *) __buf;
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int reclen = ROUND_UP64(NAME_OFFSET(dirent) + namlen + 1);
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int reclen = ALIGN(NAME_OFFSET(dirent) + namlen + 1, sizeof(u64));
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buf->error = -EINVAL; /* only used if we fail.. */
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if (reclen > buf->count)
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@ -14,6 +14,7 @@
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* of fds to overcome nfds < 16390 descriptors limit (Tigran Aivazian).
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*/
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#include <linux/kernel.h>
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#include <linux/syscalls.h>
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#include <linux/module.h>
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#include <linux/slab.h>
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@ -25,7 +26,6 @@
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#include <asm/uaccess.h>
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#define ROUND_UP(x,y) (((x)+(y)-1)/(y))
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#define DEFAULT_POLLMASK (POLLIN | POLLOUT | POLLRDNORM | POLLWRNORM)
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struct poll_table_page {
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@ -398,7 +398,7 @@ asmlinkage long sys_select(int n, fd_set __user *inp, fd_set __user *outp,
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if ((u64)tv.tv_sec >= (u64)MAX_INT64_SECONDS)
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timeout = -1; /* infinite */
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else {
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timeout = ROUND_UP(tv.tv_usec, USEC_PER_SEC/HZ);
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timeout = DIV_ROUND_UP(tv.tv_usec, USEC_PER_SEC/HZ);
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timeout += tv.tv_sec * HZ;
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}
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}
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@ -453,7 +453,7 @@ asmlinkage long sys_pselect7(int n, fd_set __user *inp, fd_set __user *outp,
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if ((u64)ts.tv_sec >= (u64)MAX_INT64_SECONDS)
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timeout = -1; /* infinite */
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else {
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timeout = ROUND_UP(ts.tv_nsec, NSEC_PER_SEC/HZ);
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timeout = DIV_ROUND_UP(ts.tv_nsec, NSEC_PER_SEC/HZ);
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timeout += ts.tv_sec * HZ;
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}
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}
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@ -775,7 +775,7 @@ asmlinkage long sys_ppoll(struct pollfd __user *ufds, unsigned int nfds,
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if ((u64)ts.tv_sec >= (u64)MAX_INT64_SECONDS)
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timeout = -1; /* infinite */
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else {
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timeout = ROUND_UP(ts.tv_nsec, NSEC_PER_SEC/HZ);
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timeout = DIV_ROUND_UP(ts.tv_nsec, NSEC_PER_SEC/HZ);
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timeout += ts.tv_sec * HZ;
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}
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}
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