From: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
Create a helper to unlink, recreate, and reserve space in a file so that
we don't have two open-coded versions. We lose the broken ALLOCSP code
since it never worked anyway.
Signed-off-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
---
restore/dirattr.c | 97 ++++++++++++++++++-----------------------------------
restore/dirattr.h | 2 +
restore/namreg.c | 70 +++-----------------------------------
3 files changed, 41 insertions(+), 128 deletions(-)
diff --git a/restore/dirattr.c b/restore/dirattr.c
index 5368664..0fb2877 100644
--- a/restore/dirattr.c
+++ b/restore/dirattr.c
@@ -55,6 +55,37 @@
#include "openutil.h"
#include "mmap.h"
+/* Create a file, try to reserve space for it, and return the fd. */
+int
+create_filled_file(
+ const char *pathname,
+ off64_t size)
+{
+ struct flock64 fl = {
+ .l_len = size,
+ };
+ int fd;
+ int ret;
+
+ (void)unlink(pathname);
+
+ fd = open(pathname, O_RDWR | O_CREAT | O_EXCL, S_IRUSR | S_IWUSR);
+ if (fd < 0)
+ return fd;
+
+ ret = ioctl(fd, XFS_IOC_RESVSP64, &fl);
+ if (ret && errno != ENOTTY)
+ mlog(MLOG_VERBOSE | MLOG_NOTE,
+_("attempt to reserve %lld bytes for %s using %s failed: %s (%d)\n"),
+ size, pathname, "XFS_IOC_RESVSP64",
+ strerror(errno), errno);
+ if (ret == 0)
+ goto done;
+
+done:
+ return fd;
+}
+
/* structure definitions used locally ****************************************/
/* node handle limits
@@ -238,13 +269,8 @@ dirattr_init(char *hkdir, bool_t resume, uint64_t dircnt)
return BOOL_FALSE;
}
} else {
- /* create the dirattr file, first unlinking any older version
- * laying around
- */
- (void)unlink(dtp->dt_pathname);
- dtp->dt_fd = open(dtp->dt_pathname,
- O_RDWR | O_CREAT | O_EXCL,
- S_IRUSR | S_IWUSR);
+ dtp->dt_fd = create_filled_file(dtp->dt_pathname,
+ DIRATTR_PERS_SZ + (dircnt * sizeof(struct dirattr)));
if (dtp->dt_fd < 0) {
mlog(MLOG_NORMAL | MLOG_ERROR, _(
"could not create directory attributes file %s: "
@@ -253,63 +279,6 @@ dirattr_init(char *hkdir, bool_t resume, uint64_t dircnt)
strerror(errno));
return BOOL_FALSE;
}
-
- /* reserve space for the backing store. try to use RESVSP64.
- * if doesn't work, try ALLOCSP64. the former is faster, as
- * it does not zero the space.
- */
- {
- bool_t successpr;
- unsigned int ioctlcmd;
- int loglevel;
- size_t trycnt;
-
- for (trycnt = 0,
- successpr = BOOL_FALSE,
- ioctlcmd = XFS_IOC_RESVSP64,
- loglevel = MLOG_VERBOSE
- ;
- ! successpr && trycnt < 2
- ;
- trycnt++,
- ioctlcmd = XFS_IOC_ALLOCSP64,
- loglevel = max(MLOG_NORMAL, loglevel - 1)) {
- off64_t initsz;
- struct flock64 flock64;
- int rval;
-
- if (! ioctlcmd) {
- continue;
- }
-
- initsz = (off64_t)DIRATTR_PERS_SZ
- +
- ((off64_t)dircnt * sizeof(dirattr_t));
- flock64.l_whence = 0;
- flock64.l_start = 0;
- flock64.l_len = initsz;
- rval = ioctl(dtp->dt_fd, ioctlcmd, &flock64);
- if (rval) {
- if (errno != ENOTTY) {
- mlog(loglevel | MLOG_NOTE, _(
- "attempt to reserve %lld bytes for %s "
- "using %s "
- "failed: %s (%d)\n"),
- initsz,
- dtp->dt_pathname,
- ioctlcmd == XFS_IOC_RESVSP64
- ?
- "XFS_IOC_RESVSP64"
- :
- "XFS_IOC_ALLOCSP64",
- strerror(errno),
- errno);
- }
- } else {
- successpr = BOOL_TRUE;
- }
- }
- }
}
/* mmap the persistent descriptor
diff --git a/restore/dirattr.h b/restore/dirattr.h
index dd37a98..e81e69c 100644
--- a/restore/dirattr.h
+++ b/restore/dirattr.h
@@ -88,4 +88,6 @@ extern bool_t dirattr_cb_extattr(dah_t dah,
extattrhdr_t *ahdrp,
void *ctxp);
+int create_filled_file(const char *pathname, off64_t size);
+
#endif /* DIRATTR_H */
diff --git a/restore/namreg.c b/restore/namreg.c
index 89fa5ef..d0d5e89 100644
--- a/restore/namreg.c
+++ b/restore/namreg.c
@@ -37,6 +37,10 @@
#include "namreg.h"
#include "openutil.h"
#include "mmap.h"
+#include "global.h"
+#include "content.h"
+#include "content_inode.h"
+#include "dirattr.h"
/* structure definitions used locally ****************************************/
@@ -153,13 +157,8 @@ namreg_init(char *hkdir, bool_t resume, uint64_t inocnt)
return BOOL_FALSE;
}
} else {
- /* create the namreg file, first unlinking any older version
- * laying around
- */
- (void)unlink(ntp->nt_pathname);
- ntp->nt_fd = open(ntp->nt_pathname,
- O_RDWR | O_CREAT | O_EXCL,
- S_IRUSR | S_IWUSR);
+ ntp->nt_fd = create_filled_file(ntp->nt_pathname,
+ NAMREG_PERS_SZ + (inocnt * NAMREG_AVGLEN));
if (ntp->nt_fd < 0) {
mlog(MLOG_NORMAL | MLOG_ERROR, _(
"could not create name registry file %s: "
@@ -168,63 +167,6 @@ namreg_init(char *hkdir, bool_t resume, uint64_t inocnt)
strerror(errno));
return BOOL_FALSE;
}
-
- /* reserve space for the backing store. try to use RESVSP64.
- * if doesn't work, try ALLOCSP64. the former is faster, as
- * it does not zero the space.
- */
- {
- bool_t successpr;
- unsigned int ioctlcmd;
- int loglevel;
- size_t trycnt;
-
- for (trycnt = 0,
- successpr = BOOL_FALSE,
- ioctlcmd = XFS_IOC_RESVSP64,
- loglevel = MLOG_VERBOSE
- ;
- ! successpr && trycnt < 2
- ;
- trycnt++,
- ioctlcmd = XFS_IOC_ALLOCSP64,
- loglevel = max(MLOG_NORMAL, loglevel - 1)) {
- off64_t initsz;
- struct flock64 flock64;
- int rval;
-
- if (! ioctlcmd) {
- continue;
- }
-
- initsz = (off64_t)NAMREG_PERS_SZ
- +
- ((off64_t)inocnt * NAMREG_AVGLEN);
- flock64.l_whence = 0;
- flock64.l_start = 0;
- flock64.l_len = initsz;
- rval = ioctl(ntp->nt_fd, ioctlcmd, &flock64);
- if (rval) {
- if (errno != ENOTTY) {
- mlog(loglevel | MLOG_NOTE, _(
- "attempt to reserve %lld bytes for %s "
- "using %s "
- "failed: %s (%d)\n"),
- initsz,
- ntp->nt_pathname,
- ioctlcmd == XFS_IOC_RESVSP64
- ?
- "XFS_IOC_RESVSP64"
- :
- "XFS_IOC_ALLOCSP64",
- strerror(errno),
- errno);
- }
- } else {
- successpr = BOOL_TRUE;
- }
- }
- }
}
/* mmap the persistent descriptor
