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https://git.proxmox.com/git/mirror_zfs.git
synced 2026-05-23 02:44:41 +03:00
Support the fallocate() file operation.
Currently only the (FALLOC_FL_PUNCH_HOLE) flag combination is supported, since it's the only one that matches the behavior of zfs_space(). This makes it pretty much useless in its current form, but it's a start. To support other flag combinations we would need to modify zfs_space() to make it more flexible, or emulate the desired functionality in zpl_fallocate(). Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Issue #334
This commit is contained in:
Etienne Dechamps
committed by
Brian Behlendorf
Brian Behlendorf
parent
aec69371a6
commit
cb2d19010d
@@ -15469,6 +15469,144 @@ fi
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{ $as_echo "$as_me:$LINENO: checking whether fops->fallocate() exists" >&5
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$as_echo_n "checking whether fops->fallocate() exists... " >&6; }
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cat confdefs.h - <<_ACEOF >conftest.c
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/* confdefs.h. */
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_ACEOF
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cat confdefs.h >>conftest.$ac_ext
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cat >>conftest.$ac_ext <<_ACEOF
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/* end confdefs.h. */
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#include <linux/fs.h>
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int
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main (void)
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{
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long (*fallocate) (struct file *, int, loff_t, loff_t) = NULL;
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struct file_operations fops __attribute__ ((unused)) = {
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.fallocate = fallocate,
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};
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;
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return 0;
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}
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_ACEOF
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rm -Rf build && mkdir -p build
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echo "obj-m := conftest.o" >build/Makefile
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if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
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{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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$as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
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(exit $ac_status); }; } >/dev/null && { ac_try='test -s build/conftest.o'
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{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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$as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
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(exit $ac_status); }; }; then
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{ $as_echo "$as_me:$LINENO: result: yes" >&5
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$as_echo "yes" >&6; }
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cat >>confdefs.h <<\_ACEOF
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#define HAVE_FILE_FALLOCATE 1
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_ACEOF
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else
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$as_echo "$as_me: failed program was:" >&5
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sed 's/^/| /' conftest.$ac_ext >&5
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{ $as_echo "$as_me:$LINENO: result: no" >&5
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$as_echo "no" >&6; }
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fi
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rm -Rf build
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{ $as_echo "$as_me:$LINENO: checking whether iops->fallocate() exists" >&5
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$as_echo_n "checking whether iops->fallocate() exists... " >&6; }
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cat confdefs.h - <<_ACEOF >conftest.c
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/* confdefs.h. */
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_ACEOF
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cat confdefs.h >>conftest.$ac_ext
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cat >>conftest.$ac_ext <<_ACEOF
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/* end confdefs.h. */
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#include <linux/fs.h>
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int
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main (void)
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{
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long (*fallocate) (struct inode *, int, loff_t, loff_t) = NULL;
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struct inode_operations fops __attribute__ ((unused)) = {
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.fallocate = fallocate,
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};
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;
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return 0;
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}
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_ACEOF
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rm -Rf build && mkdir -p build
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echo "obj-m := conftest.o" >build/Makefile
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if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
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{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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$as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
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(exit $ac_status); }; } >/dev/null && { ac_try='test -s build/conftest.o'
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{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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$as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
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(exit $ac_status); }; }; then
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{ $as_echo "$as_me:$LINENO: result: yes" >&5
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$as_echo "yes" >&6; }
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cat >>confdefs.h <<\_ACEOF
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#define HAVE_INODE_FALLOCATE 1
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_ACEOF
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else
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$as_echo "$as_me: failed program was:" >&5
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sed 's/^/| /' conftest.$ac_ext >&5
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{ $as_echo "$as_me:$LINENO: result: no" >&5
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$as_echo "no" >&6; }
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fi
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rm -Rf build
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{ $as_echo "$as_me:$LINENO: checking whether symbol insert_inode_locked is exported" >&5
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$as_echo_n "checking whether symbol insert_inode_locked is exported... " >&6; }
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grep -q -E '[[:space:]]insert_inode_locked[[:space:]]' \
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@@ -21149,6 +21287,144 @@ fi
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{ $as_echo "$as_me:$LINENO: checking whether fops->fallocate() exists" >&5
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$as_echo_n "checking whether fops->fallocate() exists... " >&6; }
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cat confdefs.h - <<_ACEOF >conftest.c
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/* confdefs.h. */
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_ACEOF
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cat confdefs.h >>conftest.$ac_ext
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cat >>conftest.$ac_ext <<_ACEOF
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/* end confdefs.h. */
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#include <linux/fs.h>
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int
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main (void)
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{
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long (*fallocate) (struct file *, int, loff_t, loff_t) = NULL;
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struct file_operations fops __attribute__ ((unused)) = {
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.fallocate = fallocate,
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};
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;
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return 0;
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}
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_ACEOF
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rm -Rf build && mkdir -p build
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echo "obj-m := conftest.o" >build/Makefile
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if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
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{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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$as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
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(exit $ac_status); }; } >/dev/null && { ac_try='test -s build/conftest.o'
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{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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$as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
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(exit $ac_status); }; }; then
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{ $as_echo "$as_me:$LINENO: result: yes" >&5
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$as_echo "yes" >&6; }
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cat >>confdefs.h <<\_ACEOF
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#define HAVE_FILE_FALLOCATE 1
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_ACEOF
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else
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$as_echo "$as_me: failed program was:" >&5
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sed 's/^/| /' conftest.$ac_ext >&5
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{ $as_echo "$as_me:$LINENO: result: no" >&5
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$as_echo "no" >&6; }
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fi
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rm -Rf build
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{ $as_echo "$as_me:$LINENO: checking whether iops->fallocate() exists" >&5
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$as_echo_n "checking whether iops->fallocate() exists... " >&6; }
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cat confdefs.h - <<_ACEOF >conftest.c
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/* confdefs.h. */
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_ACEOF
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cat confdefs.h >>conftest.$ac_ext
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cat >>conftest.$ac_ext <<_ACEOF
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/* end confdefs.h. */
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#include <linux/fs.h>
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int
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main (void)
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{
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long (*fallocate) (struct inode *, int, loff_t, loff_t) = NULL;
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struct inode_operations fops __attribute__ ((unused)) = {
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.fallocate = fallocate,
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};
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;
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return 0;
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}
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_ACEOF
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rm -Rf build && mkdir -p build
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echo "obj-m := conftest.o" >build/Makefile
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if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
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{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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$as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
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(exit $ac_status); }; } >/dev/null && { ac_try='test -s build/conftest.o'
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{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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$as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
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(exit $ac_status); }; }; then
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{ $as_echo "$as_me:$LINENO: result: yes" >&5
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$as_echo "yes" >&6; }
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cat >>confdefs.h <<\_ACEOF
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#define HAVE_INODE_FALLOCATE 1
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_ACEOF
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else
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$as_echo "$as_me: failed program was:" >&5
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sed 's/^/| /' conftest.$ac_ext >&5
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{ $as_echo "$as_me:$LINENO: result: no" >&5
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$as_echo "no" >&6; }
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fi
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rm -Rf build
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{ $as_echo "$as_me:$LINENO: checking whether symbol insert_inode_locked is exported" >&5
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$as_echo_n "checking whether symbol insert_inode_locked is exported... " >&6; }
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grep -q -E '[[:space:]]insert_inode_locked[[:space:]]' \
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