From a712b4bb97628129bf08b0bc35d91277bfa429b4 Mon Sep 17 00:00:00 2001
From: drh <drh@noemail.net>
Date: Thu, 19 Feb 2015 16:12:04 +0000
Subject: [PATCH] Remove a redundant call to statfs() in the xOpen() method of
 the unix VFS. Also fix an unused local variable warning.

FossilOrigin-Name: 8215727dda384351765ab1d5c53ea80775b4ec65
---
 manifest      | 12 ++++++------
 manifest.uuid |  2 +-
 src/os_unix.c | 16 +---------------
 3 files changed, 8 insertions(+), 22 deletions(-)

diff --git a/manifest b/manifest
index df5da3164f..438d907e73 100644
--- a/manifest
+++ b/manifest
@@ -1,5 +1,5 @@
-C Move\sthe\sos_unix.c\sfile\scloser\sto\sapple-osx.
-D 2015-02-19T02:43:02.884
+C Remove\sa\sredundant\scall\sto\sstatfs()\sin\sthe\sxOpen()\smethod\sof\sthe\sunix\sVFS.\nAlso\sfix\san\sunused\slocal\svariable\swarning.
+D 2015-02-19T16:12:04.194
 F Makefile.arm-wince-mingw32ce-gcc d6df77f1f48d690bd73162294bbba7f59507c72f
 F Makefile.in 6b9e7677829aa94b9f30949656e27312aefb9a46
 F Makefile.linux-gcc 91d710bdc4998cb015f39edf3cb314ec4f4d7e23
@@ -214,7 +214,7 @@ F src/os.c 8fd25588eeba74068d41102d26810e216999b6c8
 F src/os.h 3e57a24e2794a94d3cf2342c6d9a884888cd96bf
 F src/os_common.h 92815ed65f805560b66166e3583470ff94478f04
 F src/os_setup.h c9d4553b5aaa6f73391448b265b89bed0b890faa
-F src/os_unix.c 9922c8f5b2e32c0f0be2292feca5f72d88f6a833
+F src/os_unix.c 16ad795ef98966d9bdb3c967585fdadf9a2cfcb9
 F src/os_win.c 8223e7db5b7c4a81d8b161098ac3959400434cdb
 F src/os_win.h eb7a47aa17b26b77eb97e4823f20a00b8bda12ca
 F src/pager.c 4120a49ecd37697e28f5ed807f470b9c0b88410c
@@ -1239,7 +1239,7 @@ F tool/vdbe_profile.tcl 67746953071a9f8f2f668b73fe899074e2c6d8c1
 F tool/warnings-clang.sh f6aa929dc20ef1f856af04a730772f59283631d4
 F tool/warnings.sh 0abfd78ceb09b7f7c27c688c8e3fe93268a13b32
 F tool/win/sqlite.vsix deb315d026cc8400325c5863eef847784a219a2f
-P 28284ccc0d7301503f6d2d7bee9093738d52e331
-R de5d87b1cb4f744ff7cb90b036adcd40
+P 81f242e338d6122e27aad86986bfd140012c6582
+R 02e43373b368494c6578c4a98382bae8
 U drh
-Z 45842533d15e073070e1f1a9e9241135
+Z 3ab050a0ccd2941539e2053f07648364
diff --git a/manifest.uuid b/manifest.uuid
index 084bab91e8..1991f8fafa 100644
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-81f242e338d6122e27aad86986bfd140012c6582
\ No newline at end of file
+8215727dda384351765ab1d5c53ea80775b4ec65
\ No newline at end of file
diff --git a/src/os_unix.c b/src/os_unix.c
index d81618f610..522617212f 100644
--- a/src/os_unix.c
+++ b/src/os_unix.c
@@ -1783,14 +1783,13 @@ static int posixUnlock(sqlite3_file *id, int eFileLock, int handleNFSUnlock){
     **  4:   [RRRR.]
     */
     if( eFileLock==SHARED_LOCK ){
-      int tErrno;               /* Error code from system call errors */
-
 #if !defined(__APPLE__) || !SQLITE_ENABLE_LOCKING_STYLE
       (void)handleNFSUnlock;
       assert( handleNFSUnlock==0 );
 #endif
 #if defined(__APPLE__) && SQLITE_ENABLE_LOCKING_STYLE
       if( handleNFSUnlock ){
+        int tErrno;               /* Error code from system call errors */
         off_t divSize = SHARED_SIZE - 1;
         
         lock.l_type = F_UNLCK;
@@ -5878,19 +5877,6 @@ static int unixOpen(
     if( envforce!=NULL ){
       useProxy = atoi(envforce)>0;
     }else{
-      if( statfs(zPath, &fsInfo) == -1 ){
-        /* In theory, the close(fd) call is sub-optimal. If the file opened
-        ** with fd is a database file, and there are other connections open
-        ** on that file that are currently holding advisory locks on it,
-        ** then the call to close() will cancel those locks. In practice,
-        ** we're assuming that statfs() doesn't fail very often. At least
-        ** not while other file descriptors opened by the same process on
-        ** the same file are working.  */
-        storeLastErrno(p, errno);
-        robust_close(p, fd, __LINE__);
-        rc = SQLITE_IOERR_ACCESS;
-        goto open_finished;
-      }
       useProxy = !(fsInfo.f_flags&MNT_LOCAL);
     }
     if( useProxy ){