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authorLinus Torvalds <torvalds@linux-foundation.org>2010-01-19 00:09:21 +0100
committerKarel Zak <kzak@redhat.com>2010-01-19 00:13:16 +0100
commita67bb3bff5dc51400294fdfb4c77c0827afd5d14 (patch)
tree4ac5f1a4272d0d95106634ef0e044eb6bffc787b /configure.ac
parent45835b734574264fcd45d9e6c1736061f6f7c200 (diff)
downloadutil-linux-old-a67bb3bff5dc51400294fdfb4c77c0827afd5d14.tar.gz
libblkid: disable read-ahead when probing device files
Read-ahead doesn't work very well on device probing, and can hurt a lot when we do essentially random accesses on very slow devices. So disable it if possible. [kzak@redhat.com: - add posix_fadvise() configure test] Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Karel Zak <kzak@redhat.com>
Diffstat (limited to 'configure.ac')
-rw-r--r--configure.ac1
1 files changed, 1 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac
index 5ddeaa5d..1fef9444 100644
--- a/configure.ac
+++ b/configure.ac
@@ -163,6 +163,7 @@ AC_CHECK_FUNCS(
setresuid \
inotify_init \
prctl \
+ posix_fadvise \
getmntinfo \
__secure_getenv \
rpmatch])