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hw/9pfs: Add st_gen support in getattr reply

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This patch use file system specific ioctl for getting i_generation
value. Not all file system support the ioctl. So we add an export
specific extended operation and assign right callback for the
file system that support i_generation ioctl

["M. Mohan Kumar" <mohan@in.ibm.com> we can do ioctl only for
regular files and directories on the server]

Signed-off-by: Harsh Prateek Bora <harsh@linux.vnet.ibm.com>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
This commit is contained in:
Harsh Prateek Bora 2011-10-12 19:11:25 +05:30 • committed by Aneesh Kumar K.V
parent 9844081bca
commit e06a765efb
7 changed files with 116 additions and 1 deletions
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17
configure vendored
View file

@ -2568,6 +2568,19 @@ if compile_prog "" "" ; then
open_by_handle_at=yes
fi
########################################
# check if we have linux/magic.h
linux_magic_h=no
cat > $TMPC << EOF
#include <linux/magic.h>
int main(void) {
}
EOF
if compile_prog "" "" ; then
linux_magic_h=yes
fi
##########################################
# End of CC checks
# After here, no more $cc or $ld runs
@ -3051,6 +3064,10 @@ if test "$open_by_handle_at" = "yes" ; then
echo "CONFIG_OPEN_BY_HANDLE=y" >> $config_host_mak
fi
if test "$linux_magic_h" = "yes" ; then
echo "CONFIG_LINUX_MAGIC_H=y" >> $config_host_mak
fi
# USB host support
case "$usb" in
linux)