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SUSE:SLE-15-SP3:GA
glibc.18276
nscd-senfile.patch
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File nscd-senfile.patch of Package glibc.18276
2018-05-16 Adhemerval Zanella <adhemerval.zanella@linaro.org> [BZ #23178] * nscd/nscd-client.h (sendfileall): Remove prototype. * nscd/connections.c [HAVE_SENDFILE] (sendfileall): Remove function. (handle_request): Use writeall instead of sendfileall. * nscd/aicache.c (addhstaiX): Likewise. * nscd/grpcache.c (cache_addgr): Likewise. * nscd/hstcache.c (cache_addhst): Likewise. * nscd/initgrcache.c (addinitgroupsX): Likewise. * nscd/netgroupcache.c (addgetnetgrentX, addinnetgrX): Likewise. * nscd/pwdcache.c (cache_addpw): Likewise. * nscd/servicescache.c (cache_addserv): Likewise. * sysdeps/unix/sysv/linux/Makefile [$(subdir) == nscd] (sysdep-CFLAGS): Remove -DHAVE_SENDFILE. * sysdeps/unix/sysv/linux/kernel-features.h (__ASSUME_SENDFILE): Remove define. Index: glibc-2.26/nscd/aicache.c =================================================================== --- glibc-2.26.orig/nscd/aicache.c +++ glibc-2.26/nscd/aicache.c @@ -31,9 +31,6 @@ #include "dbg_log.h" #include "nscd.h" -#ifdef HAVE_SENDFILE -# include <kernel-features.h> -#endif typedef enum nss_status (*nss_gethostbyname4_r) @@ -447,32 +444,7 @@ addhstaiX (struct database_dyn *db, int would unnecessarily let the receiver wait. */ assert (fd != -1); -#ifdef HAVE_SENDFILE - if (__builtin_expect (db->mmap_used, 1) && !alloca_used) - { - assert (db->wr_fd != -1); - assert ((char *) &dataset->resp > (char *) db->data); - assert ((char *) dataset - (char *) db->head + total - <= (sizeof (struct database_pers_head) - + db->head->module * sizeof (ref_t) - + db->head->data_size)); -# ifndef __ASSUME_SENDFILE - ssize_t written; - written = -# endif - sendfileall (fd, db->wr_fd, (char *) &dataset->resp - - (char *) db->head, dataset->head.recsize); -# ifndef __ASSUME_SENDFILE - if (written == -1 && errno == ENOSYS) - goto use_write; -# endif - } - else -# ifndef __ASSUME_SENDFILE - use_write: -# endif -#endif - writeall (fd, &dataset->resp, dataset->head.recsize); + writeall (fd, &dataset->resp, dataset->head.recsize); } goto out; Index: glibc-2.26/nscd/connections.c =================================================================== --- glibc-2.26.orig/nscd/connections.c +++ glibc-2.26/nscd/connections.c @@ -46,9 +46,6 @@ #include <sys/mman.h> #include <sys/param.h> #include <sys/poll.h> -#ifdef HAVE_SENDFILE -# include <sys/sendfile.h> -#endif #include <sys/socket.h> #include <sys/stat.h> #include <sys/un.h> @@ -279,26 +276,6 @@ writeall (int fd, const void *buf, size_ } -#ifdef HAVE_SENDFILE -ssize_t -sendfileall (int tofd, int fromfd, off_t off, size_t len) -{ - ssize_t n = len; - ssize_t ret; - - do - { - ret = TEMP_FAILURE_RETRY (sendfile (tofd, fromfd, &off, n)); - if (ret <= 0) - break; - n -= ret; - } - while (n > 0); - return ret < 0 ? ret : len - n; -} -#endif - - enum usekey { use_not = 0, @@ -1156,35 +1133,8 @@ request from '%s' [%ld] not handled due if (cached != NULL) { /* Hurray it's in the cache. */ - ssize_t nwritten; - -#ifdef HAVE_SENDFILE - if (__glibc_likely (db->mmap_used)) - { - assert (db->wr_fd != -1); - assert ((char *) cached->data > (char *) db->data); - assert ((char *) cached->data - (char *) db->head - + cached->recsize - <= (sizeof (struct database_pers_head) - + db->head->module * sizeof (ref_t) - + db->head->data_size)); - nwritten = sendfileall (fd, db->wr_fd, - (char *) cached->data - - (char *) db->head, cached->recsize); -# ifndef __ASSUME_SENDFILE - if (nwritten == -1 && errno == ENOSYS) - goto use_write; -# endif - } - else -# ifndef __ASSUME_SENDFILE - use_write: -# endif -#endif - nwritten = writeall (fd, cached->data, cached->recsize); - - if (nwritten != cached->recsize - && __builtin_expect (debug_level, 0) > 0) + if (writeall (fd, cached->data, cached->recsize) != cached->recsize + && __glibc_unlikely (debug_level > 0)) { /* We have problems sending the result. */ char buf[256]; Index: glibc-2.26/nscd/grpcache.c =================================================================== --- glibc-2.26.orig/nscd/grpcache.c +++ glibc-2.26/nscd/grpcache.c @@ -35,9 +35,6 @@ #include "nscd.h" #include "dbg_log.h" -#ifdef HAVE_SENDFILE -# include <kernel-features.h> -#endif /* This is the standard reply in case the service is disabled. */ static const gr_response_header disabled = @@ -318,37 +315,9 @@ cache_addgr (struct database_dyn *db, in unnecessarily let the receiver wait. */ assert (fd != -1); -#ifdef HAVE_SENDFILE - if (__builtin_expect (db->mmap_used, 1) && ! dataset_temporary) - { - assert (db->wr_fd != -1); - assert ((char *) &dataset->resp > (char *) db->data); - assert ((char *) dataset - (char *) db->head - + total - <= (sizeof (struct database_pers_head) - + db->head->module * sizeof (ref_t) - + db->head->data_size)); - ssize_t written = sendfileall (fd, db->wr_fd, - (char *) &dataset->resp - - (char *) db->head, - dataset->head.recsize); - if (written != dataset->head.recsize) - { -# ifndef __ASSUME_SENDFILE - if (written == -1 && errno == ENOSYS) - goto use_write; -# endif - all_written = false; - } - } - else -# ifndef __ASSUME_SENDFILE - use_write: -# endif -#endif - if (writeall (fd, &dataset->resp, dataset->head.recsize) - != dataset->head.recsize) - all_written = false; + if (writeall (fd, &dataset->resp, dataset->head.recsize) + != dataset->head.recsize) + all_written = false; } /* Add the record to the database. But only if it has not been Index: glibc-2.26/nscd/hstcache.c =================================================================== --- glibc-2.26.orig/nscd/hstcache.c +++ glibc-2.26/nscd/hstcache.c @@ -37,9 +37,6 @@ #include "nscd.h" #include "dbg_log.h" -#ifdef HAVE_SENDFILE -# include <kernel-features.h> -#endif /* This is the standard reply in case the service is disabled. */ @@ -352,37 +349,9 @@ cache_addhst (struct database_dyn *db, i unnecessarily keep the receiver waiting. */ assert (fd != -1); -#ifdef HAVE_SENDFILE - if (__builtin_expect (db->mmap_used, 1) && !alloca_used) - { - assert (db->wr_fd != -1); - assert ((char *) &dataset->resp > (char *) db->data); - assert ((char *) dataset - (char *) db->head - + total - <= (sizeof (struct database_pers_head) - + db->head->module * sizeof (ref_t) - + db->head->data_size)); - ssize_t written = sendfileall (fd, db->wr_fd, - (char *) &dataset->resp - - (char *) db->head, - dataset->head.recsize); - if (written != dataset->head.recsize) - { -# ifndef __ASSUME_SENDFILE - if (written == -1 && errno == ENOSYS) - goto use_write; -# endif - all_written = false; - } - } - else -# ifndef __ASSUME_SENDFILE - use_write: -# endif -#endif - if (writeall (fd, &dataset->resp, dataset->head.recsize) - != dataset->head.recsize) - all_written = false; + if (writeall (fd, &dataset->resp, dataset->head.recsize) + != dataset->head.recsize) + all_written = false; } /* Add the record to the database. But only if it has not been Index: glibc-2.26/nscd/initgrcache.c =================================================================== --- glibc-2.26.orig/nscd/initgrcache.c +++ glibc-2.26/nscd/initgrcache.c @@ -29,9 +29,6 @@ #include "dbg_log.h" #include "nscd.h" -#ifdef HAVE_SENDFILE -# include <kernel-features.h> -#endif #include "../nss/nsswitch.h" @@ -353,37 +350,9 @@ addinitgroupsX (struct database_dyn *db, unnecessarily let the receiver wait. */ assert (fd != -1); -#ifdef HAVE_SENDFILE - if (__builtin_expect (db->mmap_used, 1) && !alloca_used) - { - assert (db->wr_fd != -1); - assert ((char *) &dataset->resp > (char *) db->data); - assert ((char *) dataset - (char *) db->head - + total - <= (sizeof (struct database_pers_head) - + db->head->module * sizeof (ref_t) - + db->head->data_size)); - ssize_t written = sendfileall (fd, db->wr_fd, - (char *) &dataset->resp - - (char *) db->head, - dataset->head.recsize); - if (written != dataset->head.recsize) - { -# ifndef __ASSUME_SENDFILE - if (written == -1 && errno == ENOSYS) - goto use_write; -# endif - all_written = false; - } - } - else -# ifndef __ASSUME_SENDFILE - use_write: -# endif -#endif - if (writeall (fd, &dataset->resp, dataset->head.recsize) - != dataset->head.recsize) - all_written = false; + if (writeall (fd, &dataset->resp, dataset->head.recsize) + != dataset->head.recsize) + all_written = false; } Index: glibc-2.26/nscd/netgroupcache.c =================================================================== --- glibc-2.26.orig/nscd/netgroupcache.c +++ glibc-2.26/nscd/netgroupcache.c @@ -413,33 +413,7 @@ addgetnetgrentX (struct database_dyn *db since while inserting this thread might block and so would unnecessarily let the receiver wait. */ writeout: -#ifdef HAVE_SENDFILE - if (__builtin_expect (db->mmap_used, 1) && cacheable) - { - assert (db->wr_fd != -1); - assert ((char *) &dataset->resp > (char *) db->data); - assert ((char *) dataset - (char *) db->head + total - <= (sizeof (struct database_pers_head) - + db->head->module * sizeof (ref_t) - + db->head->data_size)); -# ifndef __ASSUME_SENDFILE - ssize_t written = -# endif - sendfileall (fd, db->wr_fd, (char *) &dataset->resp - - (char *) db->head, dataset->head.recsize); -# ifndef __ASSUME_SENDFILE - if (written == -1 && errno == ENOSYS) - goto use_write; -# endif - } - else -#endif - { -#if defined HAVE_SENDFILE && !defined __ASSUME_SENDFILE - use_write: -#endif - writeall (fd, &dataset->resp, dataset->head.recsize); - } + writeall (fd, &dataset->resp, dataset->head.recsize); } if (cacheable) @@ -592,36 +566,9 @@ addinnetgrX (struct database_dyn *db, in /* We write the dataset before inserting it to the database since while inserting this thread might block and so would unnecessarily let the receiver wait. */ - assert (fd != -1); + assert (fd != -1); -#ifdef HAVE_SENDFILE - if (__builtin_expect (db->mmap_used, 1) && cacheable) - { - assert (db->wr_fd != -1); - assert ((char *) &dataset->resp > (char *) db->data); - assert ((char *) dataset - (char *) db->head + sizeof (*dataset) - <= (sizeof (struct database_pers_head) - + db->head->module * sizeof (ref_t) - + db->head->data_size)); -# ifndef __ASSUME_SENDFILE - ssize_t written = -# endif - sendfileall (fd, db->wr_fd, - (char *) &dataset->resp - (char *) db->head, - sizeof (innetgroup_response_header)); -# ifndef __ASSUME_SENDFILE - if (written == -1 && errno == ENOSYS) - goto use_write; -# endif - } - else -#endif - { -#if defined HAVE_SENDFILE && !defined __ASSUME_SENDFILE - use_write: -#endif - writeall (fd, &dataset->resp, sizeof (innetgroup_response_header)); - } + writeall (fd, &dataset->resp, sizeof (innetgroup_response_header)); } if (cacheable) Index: glibc-2.26/nscd/nscd-client.h =================================================================== --- glibc-2.26.orig/nscd/nscd-client.h +++ glibc-2.26/nscd/nscd-client.h @@ -443,8 +443,6 @@ extern ssize_t __readvall (int fd, const attribute_hidden; extern ssize_t writeall (int fd, const void *buf, size_t len) attribute_hidden; -extern ssize_t sendfileall (int tofd, int fromfd, off_t off, size_t len) - attribute_hidden; /* Get netlink timestamp counter from mapped area or zero. */ extern uint32_t __nscd_get_nl_timestamp (void); Index: glibc-2.26/nscd/pwdcache.c =================================================================== --- glibc-2.26.orig/nscd/pwdcache.c +++ glibc-2.26/nscd/pwdcache.c @@ -35,9 +35,6 @@ #include "nscd.h" #include "dbg_log.h" -#ifdef HAVE_SENDFILE -# include <kernel-features.h> -#endif /* This is the standard reply in case the service is disabled. */ static const pw_response_header disabled = @@ -296,37 +293,9 @@ cache_addpw (struct database_dyn *db, in unnecessarily let the receiver wait. */ assert (fd != -1); -#ifdef HAVE_SENDFILE - if (__builtin_expect (db->mmap_used, 1) && !alloca_used) - { - assert (db->wr_fd != -1); - assert ((char *) &dataset->resp > (char *) db->data); - assert ((char *) dataset - (char *) db->head - + total - <= (sizeof (struct database_pers_head) - + db->head->module * sizeof (ref_t) - + db->head->data_size)); - ssize_t written = sendfileall (fd, db->wr_fd, - (char *) &dataset->resp - - (char *) db->head, - dataset->head.recsize); - if (written != dataset->head.recsize) - { -# ifndef __ASSUME_SENDFILE - if (written == -1 && errno == ENOSYS) - goto use_write; -# endif - all_written = false; - } - } - else -# ifndef __ASSUME_SENDFILE - use_write: -# endif -#endif - if (writeall (fd, &dataset->resp, dataset->head.recsize) - != dataset->head.recsize) - all_written = false; + if (writeall (fd, &dataset->resp, dataset->head.recsize) + != dataset->head.recsize) + all_written = false; } Index: glibc-2.26/nscd/servicescache.c =================================================================== --- glibc-2.26.orig/nscd/servicescache.c +++ glibc-2.26/nscd/servicescache.c @@ -278,37 +278,9 @@ cache_addserv (struct database_dyn *db, unnecessarily keep the receiver waiting. */ assert (fd != -1); -#ifdef HAVE_SENDFILE - if (__builtin_expect (db->mmap_used, 1) && !alloca_used) - { - assert (db->wr_fd != -1); - assert ((char *) &dataset->resp > (char *) db->data); - assert ((char *) dataset - (char *) db->head - + total - <= (sizeof (struct database_pers_head) - + db->head->module * sizeof (ref_t) - + db->head->data_size)); - ssize_t written = sendfileall (fd, db->wr_fd, - (char *) &dataset->resp - - (char *) db->head, - dataset->head.recsize); - if (written != dataset->head.recsize) - { -# ifndef __ASSUME_SENDFILE - if (written == -1 && errno == ENOSYS) - goto use_write; -# endif - all_written = false; - } - } - else -# ifndef __ASSUME_SENDFILE - use_write: -# endif -#endif - if (writeall (fd, &dataset->resp, dataset->head.recsize) - != dataset->head.recsize) - all_written = false; + if (writeall (fd, &dataset->resp, dataset->head.recsize) + != dataset->head.recsize) + all_written = false; } /* Add the record to the database. But only if it has not been Index: glibc-2.26/sysdeps/unix/sysv/linux/Makefile =================================================================== --- glibc-2.26.orig/sysdeps/unix/sysv/linux/Makefile +++ glibc-2.26/sysdeps/unix/sysv/linux/Makefile @@ -219,7 +219,7 @@ CFLAGS-mq_receive.c += -fexceptions endif ifeq ($(subdir),nscd) -sysdep-CFLAGS += -DHAVE_EPOLL -DHAVE_SENDFILE -DHAVE_INOTIFY -DHAVE_NETLINK +sysdep-CFLAGS += -DHAVE_EPOLL -DHAVE_INOTIFY -DHAVE_NETLINK CFLAGS-gai.c += -DNEED_NETLINK endif Index: glibc-2.26/sysdeps/unix/sysv/linux/kernel-features.h =================================================================== --- glibc-2.26.orig/sysdeps/unix/sysv/linux/kernel-features.h +++ glibc-2.26/sysdeps/unix/sysv/linux/kernel-features.h @@ -37,9 +37,6 @@ introduced. If somebody cares these values can afterwards be corrected. */ -/* The sendfile syscall was introduced in 2.2.0. */ -#define __ASSUME_SENDFILE 1 - /* Some architectures use the socketcall multiplexer for some or all socket-related operations instead of separate syscalls. __ASSUME_SOCKETCALL is defined for such architectures. */
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