From 3d8736188c050d8149986128ea24dc8b41302fcf Mon Sep 17 00:00:00 2001 From: Prasanna Kumar Kalever Date: Fri, 22 Jul 2016 19:22:06 +0200 Subject: [PATCH 02/10] block/gluster: code cleanup RH-Author: Prasanna Kumar Kalever Message-id: <1469215330-14515-3-git-send-email-prasanna.kalever@redhat.com> Patchwork-id: 71337 O-Subject: [RHEV-7.3 qemu-kvm-rhev PATCH v2 2/6] block/gluster: code cleanup Bugzilla: 1247933 RH-Acked-by: Jeffrey Cody RH-Acked-by: Stefan Hajnoczi RH-Acked-by: Markus Armbruster unified coding styles of multiline function arguments and other error functions moved random declarations of structures and other list variables Signed-off-by: Prasanna Kumar Kalever Reviewed-by: Eric Blake Reviewed-by: Jeff Cody Message-id: 1468947453-5433-3-git-send-email-prasanna.kalever@redhat.com Signed-off-by: Jeff Cody (cherry picked from commit f70c50c81746ecd352617f2a15eca5cb03cf6219) Signed-off-by: Miroslav Rezanina Conflicts: block/gluster.c Conflicts because we still have qemu_gluster_co_write_zeroes(), while upstream switched to qemu_gluster_co_pwrite_zeroes() in commit e88a36e. Signed-off-by: Prasanna Kumar Kalever --- block/gluster.c | 142 ++++++++++++++++++++++++++++++-------------------------- 1 file changed, 75 insertions(+), 67 deletions(-) diff --git a/block/gluster.c b/block/gluster.c index 0b9a861..d4612e9 100644 --- a/block/gluster.c +++ b/block/gluster.c @@ -13,6 +13,12 @@ #include "qapi/error.h" #include "qemu/uri.h" +#define GLUSTER_OPT_FILENAME "filename" +#define GLUSTER_OPT_DEBUG "debug" +#define GLUSTER_DEBUG_DEFAULT 4 +#define GLUSTER_DEBUG_MAX 9 + + typedef struct GlusterAIOCB { int64_t size; int ret; @@ -27,6 +33,11 @@ typedef struct BDRVGlusterState { int debug_level; } BDRVGlusterState; +typedef struct BDRVGlusterReopenState { + struct glfs *glfs; + struct glfs_fd *fd; +} BDRVGlusterReopenState; + typedef struct GlusterConf { char *host; int port; @@ -36,6 +47,49 @@ typedef struct GlusterConf { int debug_level; } GlusterConf; + +static QemuOptsList qemu_gluster_create_opts = { + .name = "qemu-gluster-create-opts", + .head = QTAILQ_HEAD_INITIALIZER(qemu_gluster_create_opts.head), + .desc = { + { + .name = BLOCK_OPT_SIZE, + .type = QEMU_OPT_SIZE, + .help = "Virtual disk size" + }, + { + .name = BLOCK_OPT_PREALLOC, + .type = QEMU_OPT_STRING, + .help = "Preallocation mode (allowed values: off, full)" + }, + { + .name = GLUSTER_OPT_DEBUG, + .type = QEMU_OPT_NUMBER, + .help = "Gluster log level, valid range is 0-9", + }, + { /* end of list */ } + } +}; + +static QemuOptsList runtime_opts = { + .name = "gluster", + .head = QTAILQ_HEAD_INITIALIZER(runtime_opts.head), + .desc = { + { + .name = GLUSTER_OPT_FILENAME, + .type = QEMU_OPT_STRING, + .help = "URL to the gluster image", + }, + { + .name = GLUSTER_OPT_DEBUG, + .type = QEMU_OPT_NUMBER, + .help = "Gluster log level, valid range is 0-9", + }, + { /* end of list */ } + }, +}; + + static void qemu_gluster_gconf_free(GlusterConf *gconf) { if (gconf) { @@ -180,7 +234,7 @@ static struct glfs *qemu_gluster_init(GlusterConf *gconf, const char *filename, ret = qemu_gluster_parseuri(gconf, filename); if (ret < 0) { error_setg(errp, "Usage: file=gluster[+transport]://[host[:port]]/" - "volume/path[?socket=...]"); + "volume/path[?socket=...]"); errno = -ret; goto out; } @@ -254,30 +308,6 @@ static void gluster_finish_aiocb(struct glfs_fd *fd, ssize_t ret, void *arg) qemu_bh_schedule(acb->bh); } -#define GLUSTER_OPT_FILENAME "filename" -#define GLUSTER_OPT_DEBUG "debug" -#define GLUSTER_DEBUG_DEFAULT 4 -#define GLUSTER_DEBUG_MAX 9 - -/* TODO Convert to fine grained options */ -static QemuOptsList runtime_opts = { - .name = "gluster", - .head = QTAILQ_HEAD_INITIALIZER(runtime_opts.head), - .desc = { - { - .name = GLUSTER_OPT_FILENAME, - .type = QEMU_OPT_STRING, - .help = "URL to the gluster image", - }, - { - .name = GLUSTER_OPT_DEBUG, - .type = QEMU_OPT_NUMBER, - .help = "Gluster log level, valid range is 0-9", - }, - { /* end of list */ } - }, -}; - static void qemu_gluster_parse_flags(int bdrv_flags, int *open_flags) { assert(open_flags != NULL); @@ -370,12 +400,6 @@ out: return ret; } -typedef struct BDRVGlusterReopenState { - struct glfs *glfs; - struct glfs_fd *fd; -} BDRVGlusterReopenState; - - static int qemu_gluster_reopen_prepare(BDRVReopenState *state, BlockReopenQueue *queue, Error **errp) { @@ -476,7 +500,9 @@ static void qemu_gluster_reopen_abort(BDRVReopenState *state) #ifdef CONFIG_GLUSTERFS_ZEROFILL static coroutine_fn int qemu_gluster_co_write_zeroes(BlockDriverState *bs, - int64_t sector_num, int nb_sectors, BdrvRequestFlags flags) + int64_t sector_num, + int nb_sectors, + BdrvRequestFlags flags) { int ret; GlusterAIOCB acb; @@ -504,7 +530,7 @@ static inline bool gluster_supports_zerofill(void) } static inline int qemu_gluster_zerofill(struct glfs_fd *fd, int64_t offset, - int64_t size) + int64_t size) { return glfs_zerofill(fd, offset, size); } @@ -516,7 +542,7 @@ static inline bool gluster_supports_zerofill(void) } static inline int qemu_gluster_zerofill(struct glfs_fd *fd, int64_t offset, - int64_t size) + int64_t size) { return 0; } @@ -553,19 +579,17 @@ static int qemu_gluster_create(const char *filename, tmp = qemu_opt_get_del(opts, BLOCK_OPT_PREALLOC); if (!tmp || !strcmp(tmp, "off")) { prealloc = 0; - } else if (!strcmp(tmp, "full") && - gluster_supports_zerofill()) { + } else if (!strcmp(tmp, "full") && gluster_supports_zerofill()) { prealloc = 1; } else { error_setg(errp, "Invalid preallocation mode: '%s'" - " or GlusterFS doesn't support zerofill API", - tmp); + " or GlusterFS doesn't support zerofill API", tmp); ret = -EINVAL; goto out; } fd = glfs_creat(glfs, gconf->path, - O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, S_IRUSR | S_IWUSR); + O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, S_IRUSR | S_IWUSR); if (!fd) { ret = -errno; } else { @@ -591,7 +615,8 @@ out: } static coroutine_fn int qemu_gluster_co_rw(BlockDriverState *bs, - int64_t sector_num, int nb_sectors, QEMUIOVector *qiov, int write) + int64_t sector_num, int nb_sectors, + QEMUIOVector *qiov, int write) { int ret; GlusterAIOCB acb; @@ -606,10 +631,10 @@ static coroutine_fn int qemu_gluster_co_rw(BlockDriverState *bs, if (write) { ret = glfs_pwritev_async(s->fd, qiov->iov, qiov->niov, offset, 0, - gluster_finish_aiocb, &acb); + gluster_finish_aiocb, &acb); } else { ret = glfs_preadv_async(s->fd, qiov->iov, qiov->niov, offset, 0, - gluster_finish_aiocb, &acb); + gluster_finish_aiocb, &acb); } if (ret < 0) { @@ -634,13 +659,17 @@ static int qemu_gluster_truncate(BlockDriverState *bs, int64_t offset) } static coroutine_fn int qemu_gluster_co_readv(BlockDriverState *bs, - int64_t sector_num, int nb_sectors, QEMUIOVector *qiov) + int64_t sector_num, + int nb_sectors, + QEMUIOVector *qiov) { return qemu_gluster_co_rw(bs, sector_num, nb_sectors, qiov, 0); } static coroutine_fn int qemu_gluster_co_writev(BlockDriverState *bs, - int64_t sector_num, int nb_sectors, QEMUIOVector *qiov) + int64_t sector_num, + int nb_sectors, + QEMUIOVector *qiov) { return qemu_gluster_co_rw(bs, sector_num, nb_sectors, qiov, 1); } @@ -702,7 +731,8 @@ error: #ifdef CONFIG_GLUSTERFS_DISCARD static coroutine_fn int qemu_gluster_co_discard(BlockDriverState *bs, - int64_t sector_num, int nb_sectors) + int64_t sector_num, + int nb_sectors) { int ret; GlusterAIOCB acb; @@ -758,28 +788,6 @@ static int qemu_gluster_has_zero_init(BlockDriverState *bs) return 0; } -static QemuOptsList qemu_gluster_create_opts = { - .name = "qemu-gluster-create-opts", - .head = QTAILQ_HEAD_INITIALIZER(qemu_gluster_create_opts.head), - .desc = { - { - .name = BLOCK_OPT_SIZE, - .type = QEMU_OPT_SIZE, - .help = "Virtual disk size" - }, - { - .name = BLOCK_OPT_PREALLOC, - .type = QEMU_OPT_STRING, - .help = "Preallocation mode (allowed values: off, full)" - }, - { - .name = GLUSTER_OPT_DEBUG, - .type = QEMU_OPT_NUMBER, - .help = "Gluster log level, valid range is 0-9", - }, - { /* end of list */ } - } -}; static BlockDriver bdrv_gluster = { .format_name = "gluster", -- 1.8.3.1