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commit    ede6b19624d1836635d8bd2c8cdc6a694d8ff678
Author:   Thomas Munro <tmunro@postgresql.org>
Date:     Sun Feb 24 10:59:26 2019 +0000
First released in: 12.0, 9.4.22, 9.5.17, 9.6.13, 10.8, 11.3

    Tolerate EINVAL when calling fsync() on a directory.
    
    Previously, we tolerated EBADF as a way for the operating system to
    indicate that it doesn't support fsync() on a directory.  Tolerate
    EINVAL too, for older versions of Linux CIFS.
    
    Bug #15636.  Back-patch all the way.
    
    Reported-by: John Klann
    Discussion: https://postgr.es/m/15636-d380890dafd78fc6@postgresql.org


 src/backend/storage/file/fd.c | 2 +-
 src/bin/initdb/initdb.c       | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/backend/storage/file/fd.c b/src/backend/storage/file/fd.c
index df13a3e367c..1fa83274fb3 100644
--- a/src/backend/storage/file/fd.c
+++ b/src/backend/storage/file/fd.c
@@ -2944,7 +2944,7 @@ fsync_fname_ext(const char *fname, bool isdir, bool ignore_perm, int elevel)
 	 * Some OSes don't allow us to fsync directories at all, so we can ignore
 	 * those errors. Anything else needs to be logged.
 	 */
-	if (returncode != 0 && !(isdir && errno == EBADF))
+	if (returncode != 0 && !(isdir && (errno == EBADF || errno == EINVAL)))
 	{
 		int			save_errno;
 
diff --git a/src/bin/initdb/initdb.c b/src/bin/initdb/initdb.c
index 1d4546eeafb..2948e73af0e 100644
--- a/src/bin/initdb/initdb.c
+++ b/src/bin/initdb/initdb.c
@@ -696,7 +696,7 @@ fsync_fname_ext(const char *fname, bool isdir)
 	 * Some OSes don't allow us to fsync directories at all, so we can ignore
 	 * those errors. Anything else needs to be reported.
 	 */
-	if (returncode != 0 && !(isdir && errno == EBADF))
+	if (returncode != 0 && !(isdir && (errno == EBADF || errno == EINVAL)))
 		fprintf(stderr, _("%s: could not fsync file \"%s\": %s\n"),
 				progname, fname, strerror(errno));
 


[parent: 99a1554a2680]