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121 | return 0; |
121 | return 0; |
122 | } |
122 | } |
123 | ],ac_cv_sync_file_range=yes,ac_cv_sync_file_range=no)]) |
123 | ],ac_cv_sync_file_range=yes,ac_cv_sync_file_range=no)]) |
124 | test $ac_cv_sync_file_range = yes && AC_DEFINE(HAVE_SYNC_FILE_RANGE, 1, sync_file_range(2) is available) |
124 | test $ac_cv_sync_file_range = yes && AC_DEFINE(HAVE_SYNC_FILE_RANGE, 1, sync_file_range(2) is available) |
125 | |
125 | |
126 | AC_CACHE_CHECK(for fallocate, ac_cv_fallocate, [AC_LINK_IFELSE([ |
126 | AC_CACHE_CHECK(for fallocate, ac_cv_flinux_allocate, [AC_LINK_IFELSE([ |
127 | #include <fcntl.h> |
127 | #include <fcntl.h> |
128 | int main (void) |
128 | int main (void) |
129 | { |
129 | { |
130 | int fd = 0; |
130 | int fd = 0; |
131 | int mode = 0; |
131 | int mode = 0; |
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133 | off_t len = 1; |
133 | off_t len = 1; |
134 | int res; |
134 | int res; |
135 | res = fallocate (fd, mode, offset, len); |
135 | res = fallocate (fd, mode, offset, len); |
136 | return 0; |
136 | return 0; |
137 | } |
137 | } |
138 | ],ac_cv_fallocate=yes,ac_cv_fallocate=no)]) |
138 | ],ac_cv_linux_fallocate=yes,ac_cv_linux_fallocate=no)]) |
139 | test $ac_cv_fallocate = yes && AC_DEFINE(HAVE_FALLOCATE, 1, fallocate(2) is available) |
139 | test $ac_cv_linux_fallocate = yes && AC_DEFINE(HAVE_LINUX_FALLOCATE, 1, fallocate(2) is available) |
140 | |
140 | |
141 | AC_CACHE_CHECK(for sys_syncfs, ac_cv_sys_syncfs, [AC_LINK_IFELSE([ |
141 | AC_CACHE_CHECK(for sys_syncfs, ac_cv_sys_syncfs, [AC_LINK_IFELSE([ |
142 | #include <unistd.h> |
142 | #include <unistd.h> |
143 | #include <sys/syscall.h> |
143 | #include <sys/syscall.h> |
144 | int main (void) |
144 | int main (void) |
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191 | return 0; |
191 | return 0; |
192 | } |
192 | } |
193 | ],ac_cv_posix_fadvise=yes,ac_cv_posix_fadvise=no)]) |
193 | ],ac_cv_posix_fadvise=yes,ac_cv_posix_fadvise=no)]) |
194 | test $ac_cv_posix_fadvise = yes && AC_DEFINE(HAVE_POSIX_FADVISE, 1, posix_fadvise(2) is available) |
194 | test $ac_cv_posix_fadvise = yes && AC_DEFINE(HAVE_POSIX_FADVISE, 1, posix_fadvise(2) is available) |
195 | |
195 | |
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196 | dnl lots of linux specifics |
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197 | AC_CHECK_HEADERS([linux/fs.h linux/fiemap.h]) |
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198 | |
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199 | AC_CACHE_CHECK([for splice, vmsplice and tee], ac_cv_linux_splice, [AC_LINK_IFELSE([ |
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200 | #include <fcntl.h> |
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201 | int main (void) |
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202 | { |
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203 | ssize_t res; |
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204 | res = splice ((int)0, (loff_t)0, (int)0, (loff_t *)0, (size_t)0, SPLICE_F_MOVE | SPLICE_F_NONBLOCK | SPLICE_F_MORE); |
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205 | res = tee ((int)0, (int)0, (size_t)0, SPLICE_F_NONBLOCK); |
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206 | res = vmsplice ((int)0, (struct iovec *)0, 0, SPLICE_F_NONBLOCK | SPLICE_F_GIFT); |
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207 | return 0; |
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208 | } |
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209 | ],ac_cv_linux_splice=yes,ac_cv_linux_splice=no)]) |
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210 | test $ac_cv_linux_splice = yes && AC_DEFINE(HAVE_LINUX_SPLICE, 1, splice/vmsplice/tee(2) are available) |
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211 | |