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authorSheetal Pamecha <spamecha@redhat.com>2019-06-19 15:08:58 +0530
committerAmar Tumballi <amarts@redhat.com>2019-06-26 14:07:48 +0000
commit5cbc87d8b8f1287e81c38b793b8d13b057208c62 (patch)
treeae6599a14a1ae78367bfcbc89faec695b5442a97 /xlators/storage/posix/src
parent1716a907da1a835b658740f1325033d7ddd44952 (diff)
posix: modify storage.reserve option to take size and percent
* reverting changes made in https://review.gluster.org/#/c/glusterfs/+/21686/ * Now storage.reserve can take value in percent or bytes fixes: bz#1651445 Change-Id: Id4826210ec27991c55b17d1fecd90356bff3e036 Signed-off-by: Sheetal Pamecha <spamecha@redhat.com>
Diffstat (limited to 'xlators/storage/posix/src')
-rw-r--r--xlators/storage/posix/src/posix-common.c33
-rw-r--r--xlators/storage/posix/src/posix-helpers.c26
-rw-r--r--xlators/storage/posix/src/posix-inode-fd-ops.c15
-rw-r--r--xlators/storage/posix/src/posix.h4
4 files changed, 39 insertions, 39 deletions
diff --git a/xlators/storage/posix/src/posix-common.c b/xlators/storage/posix/src/posix-common.c
index a2b9425..a80cf96 100644
--- a/xlators/storage/posix/src/posix-common.c
+++ b/xlators/storage/posix/src/posix-common.c
@@ -335,12 +335,14 @@ posix_reconfigure(xlator_t *this, dict_t *options)
" fallback to <hostname>:<export>");
}
- GF_OPTION_RECONF("reserve-size", priv->disk_reserve_size, options, size,
+ GF_OPTION_RECONF("reserve", priv->disk_reserve, options, percent_or_size,
out);
+ /* option can be any one of percent or bytes */
+ priv->disk_unit = 0;
+ if (priv->disk_reserve < 100.0)
+ priv->disk_unit = 'p';
- GF_OPTION_RECONF("reserve", priv->disk_reserve_percent, options, uint32,
- out);
- if (priv->disk_reserve_size || priv->disk_reserve_percent) {
+ if (priv->disk_reserve) {
ret = posix_spawn_disk_space_check_thread(this);
if (ret) {
gf_msg(this->name, GF_LOG_INFO, 0, P_MSG_DISK_SPACE_CHECK_FAILED,
@@ -964,11 +966,15 @@ posix_init(xlator_t *this)
_private->disk_space_check_active = _gf_false;
_private->disk_space_full = 0;
- GF_OPTION_INIT("reserve-size", _private->disk_reserve_size, size, out);
- GF_OPTION_INIT("reserve", _private->disk_reserve_percent, uint32, out);
+ GF_OPTION_INIT("reserve", _private->disk_reserve, percent_or_size, out);
+
+ /* option can be any one of percent or bytes */
+ _private->disk_unit = 0;
+ if (_private->disk_reserve < 100.0)
+ _private->disk_unit = 'p';
- if (_private->disk_reserve_size || _private->disk_reserve_percent) {
+ if (_private->disk_reserve) {
ret = posix_spawn_disk_space_check_thread(this);
if (ret) {
gf_msg(this->name, GF_LOG_INFO, 0, P_MSG_DISK_SPACE_CHECK_FAILED,
@@ -1210,23 +1216,14 @@ struct volume_options posix_options[] = {
.op_version = {GD_OP_VERSION_4_0_0},
.flags = OPT_FLAG_SETTABLE | OPT_FLAG_DOC},
{.key = {"reserve"},
- .type = GF_OPTION_TYPE_INT,
+ .type = GF_OPTION_TYPE_PERCENT_OR_SIZET,
.min = 0,
.default_value = "1",
.validate = GF_OPT_VALIDATE_MIN,
- .description = "Percentage of disk space to be reserved."
+ .description = "Percentage/Size of disk space to be reserved."
" Set to 0 to disable",
.op_version = {GD_OP_VERSION_3_13_0},
.flags = OPT_FLAG_SETTABLE | OPT_FLAG_DOC},
- {.key = {"reserve-size"},
- .type = GF_OPTION_TYPE_SIZET,
- .min = 0,
- .default_value = "0",
- .validate = GF_OPT_VALIDATE_MIN,
- .description = "size in megabytes to be reserved for disk space."
- " Set to 0 to disable",
- .op_version = {GD_OP_VERSION_7_0},
- .flags = OPT_FLAG_SETTABLE | OPT_FLAG_DOC},
{.key = {"batch-fsync-mode"},
.type = GF_OPTION_TYPE_STR,
.default_value = "reverse-fsync",
diff --git a/xlators/storage/posix/src/posix-helpers.c b/xlators/storage/posix/src/posix-helpers.c
index a0c273f..5fa73bf 100644
--- a/xlators/storage/posix/src/posix-helpers.c
+++ b/xlators/storage/posix/src/posix-helpers.c
@@ -2257,11 +2257,11 @@ posix_disk_space_check(xlator_t *this)
struct posix_private *priv = NULL;
char *subvol_path = NULL;
int op_ret = 0;
- uint64_t size = 0;
- int percent = 0;
+ double size = 0;
+ double percent = 0;
struct statvfs buf = {0};
- uint64_t totsz = 0;
- uint64_t freesz = 0;
+ double totsz = 0;
+ double freesz = 0;
GF_VALIDATE_OR_GOTO(this->name, this, out);
priv = this->private;
@@ -2269,14 +2269,6 @@ posix_disk_space_check(xlator_t *this)
subvol_path = priv->base_path;
- if (priv->disk_reserve_size) {
- size = priv->disk_reserve_size;
- } else {
- percent = priv->disk_reserve_percent;
- totsz = (buf.f_blocks * buf.f_bsize);
- size = ((totsz * percent) / 100);
- }
-
op_ret = sys_statvfs(subvol_path, &buf);
if (op_ret == -1) {
@@ -2284,8 +2276,16 @@ posix_disk_space_check(xlator_t *this)
"statvfs failed on %s", subvol_path);
goto out;
}
- freesz = (buf.f_bfree * buf.f_bsize);
+ if (priv->disk_unit == 'p') {
+ percent = priv->disk_reserve;
+ totsz = (buf.f_blocks * buf.f_bsize);
+ size = ((totsz * percent) / 100);
+ } else {
+ size = priv->disk_reserve;
+ }
+
+ freesz = (buf.f_bfree * buf.f_bsize);
if (freesz <= size) {
priv->disk_space_full = 1;
} else {
diff --git a/xlators/storage/posix/src/posix-inode-fd-ops.c b/xlators/storage/posix/src/posix-inode-fd-ops.c
index cf74327..0901816 100644
--- a/xlators/storage/posix/src/posix-inode-fd-ops.c
+++ b/xlators/storage/posix/src/posix-inode-fd-ops.c
@@ -719,7 +719,7 @@ posix_do_fallocate(call_frame_t *frame, xlator_t *this, fd_t *fd, int32_t flags,
thread after every 5 sec sleep to working correctly storage.reserve
option behaviour
*/
- if (priv->disk_reserve_size || priv->disk_reserve_percent)
+ if (priv->disk_reserve)
posix_disk_space_check(this);
DISK_SPACE_CHECK_AND_GOTO(frame, priv, xdata, ret, ret, out);
@@ -2313,7 +2313,7 @@ posix_statfs(call_frame_t *frame, xlator_t *this, loc_t *loc, dict_t *xdata)
};
struct posix_private *priv = NULL;
int shared_by = 1;
- int percent = 0;
+ double percent = 0;
uint64_t reserved_blocks = 0;
VALIDATE_OR_GOTO(frame, out);
@@ -2340,11 +2340,14 @@ posix_statfs(call_frame_t *frame, xlator_t *this, loc_t *loc, dict_t *xdata)
goto out;
}
- if (priv->disk_reserve_size) {
- reserved_blocks = priv->disk_reserve_size / buf.f_bsize;
+ if (priv->disk_unit == 'p') {
+ percent = priv->disk_reserve;
+ reserved_blocks = (((buf.f_blocks * percent) / 100) + 0.5);
} else {
- percent = priv->disk_reserve_percent;
- reserved_blocks = (buf.f_blocks * percent) / 100;
+ if (buf.f_bsize) {
+ reserved_blocks = (priv->disk_reserve + buf.f_bsize - 1) /
+ buf.f_bsize;
+ }
}
if (buf.f_bfree > reserved_blocks) {
diff --git a/xlators/storage/posix/src/posix.h b/xlators/storage/posix/src/posix.h
index da590b5..963daf3 100644
--- a/xlators/storage/posix/src/posix.h
+++ b/xlators/storage/posix/src/posix.h
@@ -222,8 +222,8 @@ struct posix_private {
pthread_t health_check;
gf_boolean_t health_check_active;
- uint32_t disk_reserve_percent;
- uint64_t disk_reserve_size;
+ double disk_reserve;
+ char disk_unit;
uint32_t disk_space_full;
pthread_t disk_space_check;
gf_boolean_t disk_space_check_active;