Block patches

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Merge remote-tracking branch 'kwolf/tags/for-anthony' into staging

Block patches

# gpg: Signature made Fri 13 Dec 2013 09:47:03 AM PST using RSA key ID C88F2FD6
# gpg: Can't check signature: public key not found

# By Peter Lieven (2) and others
# Via Kevin Wolf
* kwolf/tags/for-anthony:
  blkdebug: Use QLIST_FOREACH_SAFE to resume IO
  qemu-img: make progress output more accurate during convert
  block: expect get_block_status errors in bdrv_make_zero
  block/vvfat: Fix compiler warnings for OpenBSD
  qapi-schema.json: Change 1.8 reference to 2.0
  sheepdog: check if '-o redundancy' is passed from user

Message-id: 1386956943-19474-1-git-send-email-kwolf@redhat.com
Signed-off-by: Anthony Liguori <aliguori@amazon.com>

block.c

@@ -2421,6 +2421,11 @@ int bdrv_make_zero(BlockDriverState *bs, BdrvRequestFlags flags)
             nb_sectors = INT_MAX;
         }
         ret = bdrv_get_block_status(bs, sector_num, nb_sectors, &n);
+        if (ret < 0) {
+            error_report("error getting block status at sector %" PRId64 ": %s",
+                         sector_num, strerror(-ret));
+            return ret;
+        }
         if (ret & BDRV_BLOCK_ZERO) {
             sector_num += n;
             continue;

block/blkdebug.c

@@ -594,9 +594,9 @@ static int blkdebug_debug_breakpoint(BlockDriverState *bs, const char *event,
 static int blkdebug_debug_resume(BlockDriverState *bs, const char *tag)
 {
     BDRVBlkdebugState *s = bs->opaque;
-    BlkdebugSuspendedReq *r;
+    BlkdebugSuspendedReq *r, *next;
 
-    QLIST_FOREACH(r, &s->suspended_reqs, next) {
+    QLIST_FOREACH_SAFE(r, &s->suspended_reqs, next, next) {
         if (!strcmp(r->tag, tag)) {
             qemu_coroutine_enter(r->co, NULL);
             return 0;
@@ -609,7 +609,7 @@ static int blkdebug_debug_remove_breakpoint(BlockDriverState *bs,
                                             const char *tag)
 {
     BDRVBlkdebugState *s = bs->opaque;
-    BlkdebugSuspendedReq *r;
+    BlkdebugSuspendedReq *r, *r_next;
     BlkdebugRule *rule, *next;
     int i, ret = -ENOENT;
 
@@ -622,7 +622,7 @@ static int blkdebug_debug_remove_breakpoint(BlockDriverState *bs,
             }
         }
     }
-    QLIST_FOREACH(r, &s->suspended_reqs, next) {
+    QLIST_FOREACH_SAFE(r, &s->suspended_reqs, next, r_next) {
         if (!strcmp(r->tag, tag)) {
             qemu_coroutine_enter(r->co, NULL);
             ret = 0;

block/sheepdog.c

@@ -1666,9 +1666,11 @@ static int sd_create(const char *filename, QEMUOptionParameter *options,
                 goto out;
             }
         } else if (!strcmp(options->name, BLOCK_OPT_REDUNDANCY)) {
-            ret = parse_redundancy(s, options->value.s);
+            if (options->value.s) {
-            if (ret < 0) {
+                ret = parse_redundancy(s, options->value.s);
-                goto out;
+                if (ret < 0) {
+                    goto out;
+                }
             }
         }
         options++;

block/vvfat.c

@@ -266,8 +266,7 @@ typedef struct mbr_t {
 } QEMU_PACKED mbr_t;
 
 typedef struct direntry_t {
-    uint8_t name[8];
+    uint8_t name[8 + 3];
-    uint8_t extension[3];
     uint8_t attributes;
     uint8_t reserved[2];
     uint16_t ctime;
@@ -518,11 +517,9 @@ static inline uint8_t fat_chksum(const direntry_t* entry)
     uint8_t chksum=0;
     int i;
 
-    for(i=0;i<11;i++) {
+    for (i = 0; i < ARRAY_SIZE(entry->name); i++) {
-        unsigned char c;
+        chksum = (((chksum & 0xfe) >> 1) |
-
+                  ((chksum & 0x01) ? 0x80 : 0)) + entry->name[i];
-        c = (i < 8) ? entry->name[i] : entry->extension[i-8];
-        chksum=(((chksum&0xfe)>>1)|((chksum&0x01)?0x80:0)) + c;
     }
 
     return chksum;
@@ -617,7 +614,7 @@ static inline direntry_t* create_short_and_long_name(BDRVVVFATState* s,
 
     if(is_dot) {
 	entry=array_get_next(&(s->directory));
-	memset(entry->name,0x20,11);
+        memset(entry->name, 0x20, sizeof(entry->name));
 	memcpy(entry->name,filename,strlen(filename));
 	return entry;
     }
@@ -632,12 +629,14 @@ static inline direntry_t* create_short_and_long_name(BDRVVVFATState* s,
 	i = 8;
 
     entry=array_get_next(&(s->directory));
-    memset(entry->name,0x20,11);
+    memset(entry->name, 0x20, sizeof(entry->name));
     memcpy(entry->name, filename, i);
 
-    if(j > 0)
+    if (j > 0) {
-	for (i = 0; i < 3 && filename[j+1+i]; i++)
+        for (i = 0; i < 3 && filename[j + 1 + i]; i++) {
-	    entry->extension[i] = filename[j+1+i];
+            entry->name[8 + i] = filename[j + 1 + i];
+        }
+    }
 
     /* upcase & remove unwanted characters */
     for(i=10;i>=0;i--) {
@@ -861,8 +860,7 @@ static int init_directories(BDRVVVFATState* s,
     {
 	direntry_t* entry=array_get_next(&(s->directory));
 	entry->attributes=0x28; /* archive | volume label */
-	memcpy(entry->name,"QEMU VVF",8);
+        memcpy(entry->name, "QEMU VVFAT ", sizeof(entry->name));
-	memcpy(entry->extension,"AT ",3);
     }
 
     /* Now build FAT, and write back information into directory */
@@ -1591,17 +1589,20 @@ static int parse_short_name(BDRVVVFATState* s,
 	    lfn->name[i] = direntry->name[i];
     }
 
-    for (j = 2; j >= 0 && direntry->extension[j] == ' '; j--);
+    for (j = 2; j >= 0 && direntry->name[8 + j] == ' '; j--) {
+    }
     if (j >= 0) {
 	lfn->name[i++] = '.';
 	lfn->name[i + j + 1] = '\0';
 	for (;j >= 0; j--) {
-	    if (direntry->extension[j] <= ' ' || direntry->extension[j] > 0x7f)
+            uint8_t c = direntry->name[8 + j];
-		return -2;
+            if (c <= ' ' || c > 0x7f) {
-	    else if (s->downcase_short_names)
+                return -2;
-		lfn->name[i + j] = qemu_tolower(direntry->extension[j]);
+            } else if (s->downcase_short_names) {
-	    else
+                lfn->name[i + j] = qemu_tolower(c);
-		lfn->name[i + j] = direntry->extension[j];
+            } else {
+                lfn->name[i + j] = c;
+            }
 	}
     } else
 	lfn->name[i + j + 1] = '\0';

qapi-schema.json

@@ -949,7 +949,7 @@
 #             (only present if removable is true)
 #
 # @dirty-bitmaps: #optional dirty bitmaps information (only present if the
-#                 driver has one or more dirty bitmaps) (Since 1.8)
+#                 driver has one or more dirty bitmaps) (Since 2.0)
 #
 # @io-status: #optional @BlockDeviceIoStatus. Only present if the device
 #             supports it and the VM is configured to stop on errors

qemu-img.c

@@ -1135,8 +1135,7 @@ static int img_convert(int argc, char **argv)
     const char *fmt, *out_fmt, *cache, *out_baseimg, *out_filename;
     BlockDriver *drv, *proto_drv;
     BlockDriverState **bs = NULL, *out_bs = NULL;
-    int64_t total_sectors, nb_sectors, sector_num, bs_offset,
+    int64_t total_sectors, nb_sectors, sector_num, bs_offset;
-            sector_num_next_status = 0;
     uint64_t bs_sectors;
     uint8_t * buf = NULL;
     size_t bufsectors = IO_BUF_SIZE / BDRV_SECTOR_SIZE;
@@ -1505,6 +1504,8 @@ static int img_convert(int argc, char **argv)
         /* signal EOF to align */
         bdrv_write_compressed(out_bs, 0, NULL, 0);
     } else {
+        int64_t sectors_to_read, sectors_read, sector_num_next_status;
+        bool count_allocated_sectors;
         int has_zero_init = min_sparse ? bdrv_has_zero_init(out_bs) : 0;
 
         if (!has_zero_init && bdrv_can_write_zeroes_with_unmap(out_bs)) {
@@ -1515,12 +1516,21 @@ static int img_convert(int argc, char **argv)
             has_zero_init = 1;
         }
 
+        sectors_to_read = total_sectors;
+        count_allocated_sectors = progress && (out_baseimg || has_zero_init);
+restart:
         sector_num = 0; // total number of sectors converted so far
-        nb_sectors = total_sectors - sector_num;
+        sectors_read = 0;
+        sector_num_next_status = 0;
 
         for(;;) {
             nb_sectors = total_sectors - sector_num;
             if (nb_sectors <= 0) {
+                if (count_allocated_sectors) {
+                    sectors_to_read = sectors_read;
+                    count_allocated_sectors = false;
+                    goto restart;
+                }
                 ret = 0;
                 break;
             }
@@ -1586,8 +1596,14 @@ static int img_convert(int argc, char **argv)
             }
 
             n = MIN(n, bs_sectors - (sector_num - bs_offset));
-            n1 = n;
 
+            sectors_read += n;
+            if (count_allocated_sectors) {
+                sector_num += n;
+                continue;
+            }
+
+            n1 = n;
             ret = bdrv_read(bs[bs_i], sector_num - bs_offset, buf, n);
             if (ret < 0) {
                 error_report("error while reading sector %" PRId64 ": %s",
@@ -1612,7 +1628,7 @@ static int img_convert(int argc, char **argv)
                 n -= n1;
                 buf1 += n1 * 512;
             }
-            qemu_progress_print(100.0 * sector_num / total_sectors, 0);
+            qemu_progress_print(100.0 * sectors_read / sectors_to_read, 0);
         }
     }
 out: