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| author | Paul Eggert <eggert@cs.ucla.edu> | 2019-06-06 21:18:11 -0700 |
|---|---|---|
| committer | Paul Eggert <eggert@cs.ucla.edu> | 2019-06-07 00:44:45 -0700 |
| commit | 486a81f387bb59b2fbbc6aff7b41adbe1621394e (patch) | |
| tree | 7b61ed0a44666f10e4da54ef3e0905974c861944 /lib/gnulib.mk.in | |
| parent | 111408a0e9eb3a9492c4057ac7d6ddbb8b365aa9 (diff) | |
| download | emacs-486a81f387bb59b2fbbc6aff7b41adbe1621394e.tar.gz | |
Use copy_file_range to copy files
The copy_file_range syscall (introduced in Linux kernel
version 4.5) can copy files more efficiently via server-side
copy etc.
* admin/merge-gnulib (GNULIB_MODULES): Add copy-file-range.
* lib/copy-file-range.c, m4/copy-file-range.m4:
New files, copied from Gnulib.
* lib/gnulib.mk.in, m4/gnulib-comp.m4: Regenerate.
* src/fileio.c (Fcopy_file): Try copy_file_range first,
falling back on read+write only if copy_file_range failed or
if the input is empty and so could be a /proc file.
Diffstat (limited to 'lib/gnulib.mk.in')
| -rw-r--r-- | lib/gnulib.mk.in | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/lib/gnulib.mk.in b/lib/gnulib.mk.in index 403d83829cd..6e817fa6897 100644 --- a/lib/gnulib.mk.in +++ b/lib/gnulib.mk.in @@ -74,6 +74,7 @@ # c-strcase \ # careadlinkat \ # close-stream \ +# copy-file-range \ # count-leading-zeros \ # count-one-bits \ # count-trailing-zeros \ @@ -1274,6 +1275,17 @@ EXTRA_DIST += close-stream.h endif ## end gnulib module close-stream +## begin gnulib module copy-file-range +ifeq (,$(OMIT_GNULIB_MODULE_copy-file-range)) + + +EXTRA_DIST += copy-file-range.c + +EXTRA_libgnu_a_SOURCES += copy-file-range.c + +endif +## end gnulib module copy-file-range + ## begin gnulib module count-leading-zeros ifeq (,$(OMIT_GNULIB_MODULE_count-leading-zeros)) |